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@Fil /.block
Last active Dec 13, 2016

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t-SNE and a force
license: mit

This is a t-SNE representation of an array of (random) circles : red, green, blue, opacity and radius are 5 independent dimensions.

The t-SNE is computed by a javascript worker, using science.ai's implementation.

A force is created that tries to:

  • follow the positions given by t-SNE

  • orient the space so that "reds" are more towards the bottom

  • collide the circles.

Based on t-SNE worker

Built with blockbuilder.org, so double-thank-you to @enjalot.

See also t-SNE Voronoi

<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script src="https://d3js.org/d3.v4.min.js"></script>
<style>
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
</style>
</head>
<body>
<script>
const maxIter = 500,
width = 400,
x = d3.scaleLinear()
.domain([-200, 200])
.range([0, width]),
area = d3.area()
.x((d,i) => i)
.y0(width+90)
.y1((d,i) => width + 90 - parseInt(3 * d||0));
d3.queue()
.defer(d3.text, 'tsne.min.js')
.defer(d3.text, 'worker.js')
.await(function (err, t, w) {
const worker = new Worker(window.URL.createObjectURL(new Blob([t + w], {
type: "text/javascript"
})));
const data = d3.range(300).map(d => [Math.random(), Math.random(), Math.random(), Math.random(), Math.random()]);
const svg = d3.select('body').append('svg')
.attr('width', width + 100)
.attr('height', width + 100);
const circles = svg.selectAll('circle')
.data(data)
.enter()
.append('circle')
.attr('r', d => d.r = 3 + 8 * d[4] * d[4])
.attr('stroke-width', 0.3)
.attr('fill', d => d3.rgb(d[0] * 256, d[1] * 256, d[2] * 256))
.attr('stroke', d => d3.rgb(d[0] * 256, d[1] * 256, d[2] * 256))
.attr('opacity', d => 0.3 + 0.7 * d[3]);
const cost = svg.append('path')
.attr('fill', '#aaa');
let pos = data.map(d => [Math.random() - 0.5, Math.random() - 0.5]);
let costs = [];
let s = 0, c = 1;
const forcetsne = d3.forceSimulation(data)
.alphaDecay(0)
.alpha(0.1)
.force('tsne', function(alpha){
data.forEach((d,i) => {
d.x += alpha * (150*pos[i][0] - d.x);
d.y += alpha * (150*pos[i][1] - d.y);
});
})
// orient the results so that reds (dimension 0) are at bottom
.force('orientation', function(){
let tx = 0,
ty = 0;
data.forEach((d,i) => {
tx += d.x * d[0];
ty += d.y * d[0];
});
let angle = Math.atan2(ty,tx);
s = Math.sin(angle);
c = Math.cos(angle);
})
.force('collide', d3.forceCollide().radius(d => 1 + d.r))
.on('tick', function () {
circles
.attr('cx', d => x(d.x*s - d.y*c))
.attr('cy', d => x(d.x*c + d.y*s));
// debug: show costs graph
// cost.attr('d', area(costs));
});
worker.onmessage = function (e) {
if (e.data.pos) pos = e.data.pos;
if (e.data.iterations) {
costs[e.data.iterations] = e.data.cost;
}
if (e.data.stop) {
console.log("stopped with message", e.data);
forcetsne.alphaDecay(0.02);
worker.terminate();
}
};
worker.postMessage({
nIter: maxIter,
// dim: 2,
perplexity: 20.0,
// earlyExaggeration: 4.0,
// learningRate: 100.0,
metric: 'manhattan', //'euclidean',
data: data
});
});
</script>
</body>
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.TSNE = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
"use strict";function Procedure(){this.argTypes=[],this.shimArgs=[],this.arrayArgs=[],this.arrayBlockIndices=[],this.scalarArgs=[],this.offsetArgs=[],this.offsetArgIndex=[],this.indexArgs=[],this.shapeArgs=[],this.funcName="",this.pre=null,this.body=null,this.post=null,this.debug=!1}function compileCwise(r){var e=new Procedure;e.pre=r.pre,e.body=r.body,e.post=r.post;var s=r.args.slice(0);e.argTypes=s;for(var o=0;o<s.length;++o){var a=s[o];if("array"===a||"object"==typeof a&&a.blockIndices){if(e.argTypes[o]="array",e.arrayArgs.push(o),e.arrayBlockIndices.push(a.blockIndices?a.blockIndices:0),e.shimArgs.push("array"+o),o<e.pre.args.length&&e.pre.args[o].count>0)throw new Error("cwise: pre() block may not reference array args");if(o<e.post.args.length&&e.post.args[o].count>0)throw new Error("cwise: post() block may not reference array args")}else if("scalar"===a)e.scalarArgs.push(o),e.shimArgs.push("scalar"+o);else if("index"===a){if(e.indexArgs.push(o),o<e.pre.args.length&&e.pre.args[o].count>0)throw new Error("cwise: pre() block may not reference array index");if(o<e.body.args.length&&e.body.args[o].lvalue)throw new Error("cwise: body() block may not write to array index");if(o<e.post.args.length&&e.post.args[o].count>0)throw new Error("cwise: post() block may not reference array index")}else if("shape"===a){if(e.shapeArgs.push(o),o<e.pre.args.length&&e.pre.args[o].lvalue)throw new Error("cwise: pre() block may not write to array shape");if(o<e.body.args.length&&e.body.args[o].lvalue)throw new Error("cwise: body() block may not write to array shape");if(o<e.post.args.length&&e.post.args[o].lvalue)throw new Error("cwise: post() block may not write to array shape")}else{if("object"!=typeof a||!a.offset)throw new Error("cwise: Unknown argument type "+s[o]);e.argTypes[o]="offset",e.offsetArgs.push({array:a.array,offset:a.offset}),e.offsetArgIndex.push(o)}}if(e.arrayArgs.length<=0)throw new Error("cwise: No array arguments specified");if(e.pre.args.length>s.length)throw new Error("cwise: Too many arguments in pre() block");if(e.body.args.length>s.length)throw new Error("cwise: Too many arguments in body() block");if(e.post.args.length>s.length)throw new Error("cwise: Too many arguments in post() block");return e.debug=!!r.printCode||!!r.debug,e.funcName=r.funcName||"cwise",e.blockSize=r.blockSize||64,createThunk(e)}var createThunk=require("./lib/thunk.js");module.exports=compileCwise;
},{"./lib/thunk.js":3}],2:[function(require,module,exports){
"use strict";function innerFill(r,n,e){var s,a,o=r.length,i=n.arrayArgs.length,t=n.indexArgs.length>0,p=[],h=[],u=0,c=0;for(s=0;o>s;++s)h.push(["i",s,"=0"].join(""));for(a=0;i>a;++a)for(s=0;o>s;++s)c=u,u=r[s],0===s?h.push(["d",a,"s",s,"=t",a,"p",u].join("")):h.push(["d",a,"s",s,"=(t",a,"p",u,"-s",c,"*t",a,"p",c,")"].join(""));for(p.push("var "+h.join(",")),s=o-1;s>=0;--s)u=r[s],p.push(["for(i",s,"=0;i",s,"<s",u,";++i",s,"){"].join(""));for(p.push(e),s=0;o>s;++s){for(c=u,u=r[s],a=0;i>a;++a)p.push(["p",a,"+=d",a,"s",s].join(""));t&&(s>0&&p.push(["index[",c,"]-=s",c].join("")),p.push(["++index[",u,"]"].join(""))),p.push("}")}return p.join("\n")}function outerFill(r,n,e,s){for(var a=n.length,o=e.arrayArgs.length,i=e.blockSize,t=e.indexArgs.length>0,p=[],h=0;o>h;++h)p.push(["var offset",h,"=p",h].join(""));for(var h=r;a>h;++h)p.push(["for(var j"+h+"=SS[",n[h],"]|0;j",h,">0;){"].join("")),p.push(["if(j",h,"<",i,"){"].join("")),p.push(["s",n[h],"=j",h].join("")),p.push(["j",h,"=0"].join("")),p.push(["}else{s",n[h],"=",i].join("")),p.push(["j",h,"-=",i,"}"].join("")),t&&p.push(["index[",n[h],"]=j",h].join(""));for(var h=0;o>h;++h){for(var u=["offset"+h],c=r;a>c;++c)u.push(["j",c,"*t",h,"p",n[c]].join(""));p.push(["p",h,"=(",u.join("+"),")"].join(""))}p.push(innerFill(n,e,s));for(var h=r;a>h;++h)p.push("}");return p.join("\n")}function countMatches(r){for(var n=0,e=r[0].length;e>n;){for(var s=1;s<r.length;++s)if(r[s][n]!==r[0][n])return n;++n}return n}function processBlock(r,n,e){for(var s=r.body,a=[],o=[],i=0;i<r.args.length;++i){var t=r.args[i];if(!(t.count<=0)){var p=new RegExp(t.name,"g"),h="",u=n.arrayArgs.indexOf(i);switch(n.argTypes[i]){case"offset":var c=n.offsetArgIndex.indexOf(i),l=n.offsetArgs[c];u=l.array,h="+q"+c;case"array":h="p"+u+h;var f="l"+i,g="a"+u;if(0===n.arrayBlockIndices[u])1===t.count?"generic"===e[u]?t.lvalue?(a.push(["var ",f,"=",g,".get(",h,")"].join("")),s=s.replace(p,f),o.push([g,".set(",h,",",f,")"].join(""))):s=s.replace(p,[g,".get(",h,")"].join("")):s=s.replace(p,[g,"[",h,"]"].join("")):"generic"===e[u]?(a.push(["var ",f,"=",g,".get(",h,")"].join("")),s=s.replace(p,f),t.lvalue&&o.push([g,".set(",h,",",f,")"].join(""))):(a.push(["var ",f,"=",g,"[",h,"]"].join("")),s=s.replace(p,f),t.lvalue&&o.push([g,"[",h,"]=",f].join("")));else{for(var j=[t.name],v=[h],y=0;y<Math.abs(n.arrayBlockIndices[u]);y++)j.push("\\s*\\[([^\\]]+)\\]"),v.push("$"+(y+1)+"*t"+u+"b"+y);if(p=new RegExp(j.join(""),"g"),h=v.join("+"),"generic"===e[u])throw new Error("cwise: Generic arrays not supported in combination with blocks!");s=s.replace(p,[g,"[",h,"]"].join(""))}break;case"scalar":s=s.replace(p,"Y"+n.scalarArgs.indexOf(i));break;case"index":s=s.replace(p,"index");break;case"shape":s=s.replace(p,"shape")}}}return[a.join("\n"),s,o.join("\n")].join("\n").trim()}function typeSummary(r){for(var n=new Array(r.length),e=!0,s=0;s<r.length;++s){var a=r[s],o=a.match(/\d+/);o=o?o[0]:"",0===a.charAt(0)?n[s]="u"+a.charAt(1)+o:n[s]=a.charAt(0)+o,s>0&&(e=e&&n[s]===n[s-1])}return e?n[0]:n.join("")}function generateCWiseOp(r,n){for(var e=n[1].length-Math.abs(r.arrayBlockIndices[0])|0,s=new Array(r.arrayArgs.length),a=new Array(r.arrayArgs.length),o=0;o<r.arrayArgs.length;++o)a[o]=n[2*o],s[o]=n[2*o+1];for(var i=[],t=[],p=[],h=[],u=[],o=0;o<r.arrayArgs.length;++o){r.arrayBlockIndices[o]<0?(p.push(0),h.push(e),i.push(e),t.push(e+r.arrayBlockIndices[o])):(p.push(r.arrayBlockIndices[o]),h.push(r.arrayBlockIndices[o]+e),i.push(0),t.push(r.arrayBlockIndices[o]));for(var c=[],l=0;l<s[o].length;l++)p[o]<=s[o][l]&&s[o][l]<h[o]&&c.push(s[o][l]-p[o]);u.push(c)}for(var f=["SS"],g=["'use strict'"],j=[],l=0;e>l;++l)j.push(["s",l,"=SS[",l,"]"].join(""));for(var o=0;o<r.arrayArgs.length;++o){f.push("a"+o),f.push("t"+o),f.push("p"+o);for(var l=0;e>l;++l)j.push(["t",o,"p",l,"=t",o,"[",p[o]+l,"]"].join(""));for(var l=0;l<Math.abs(r.arrayBlockIndices[o]);++l)j.push(["t",o,"b",l,"=t",o,"[",i[o]+l,"]"].join(""))}for(var o=0;o<r.scalarArgs.length;++o)f.push("Y"+o);if(r.shapeArgs.length>0&&j.push("shape=SS.slice(0)"),r.indexArgs.length>0){for(var v=new Array(e),o=0;e>o;++o)v[o]="0";j.push(["index=[",v.join(","),"]"].join(""))}for(var o=0;o<r.offsetArgs.length;++o){for(var y=r.offsetArgs[o],d=[],l=0;l<y.offset.length;++l)0!==y.offset[l]&&(1===y.offset[l]?d.push(["t",y.array,"p",l].join("")):d.push([y.offset[l],"*t",y.array,"p",l].join("")));0===d.length?j.push("q"+o+"=0"):j.push(["q",o,"=",d.join("+")].join(""))}var A=uniq([].concat(r.pre.thisVars).concat(r.body.thisVars).concat(r.post.thisVars));j=j.concat(A),g.push("var "+j.join(","));for(var o=0;o<r.arrayArgs.length;++o)g.push("p"+o+"|=0");r.pre.body.length>3&&g.push(processBlock(r.pre,r,a));var k=processBlock(r.body,r,a),b=countMatches(u);e>b?g.push(outerFill(b,u[0],r,k)):g.push(innerFill(u[0],r,k)),r.post.body.length>3&&g.push(processBlock(r.post,r,a)),r.debug&&console.log("-----Generated cwise routine for ",n,":\n"+g.join("\n")+"\n----------");var x=[r.funcName||"unnamed","_cwise_loop_",s[0].join("s"),"m",b,typeSummary(a)].join(""),w=new Function(["function ",x,"(",f.join(","),"){",g.join("\n"),"} return ",x].join(""));return w()}var uniq=require("uniq");module.exports=generateCWiseOp;
},{"uniq":17}],3:[function(require,module,exports){
"use strict";function createThunk(r){var a=["'use strict'","var CACHED={}"],e=[],s=r.funcName+"_cwise_thunk";a.push(["return function ",s,"(",r.shimArgs.join(","),"){"].join(""));for(var n=[],o=[],h=[["array",r.arrayArgs[0],".shape.slice(",Math.max(0,r.arrayBlockIndices[0]),r.arrayBlockIndices[0]<0?","+r.arrayBlockIndices[0]+")":")"].join("")],i=[],p=[],t=0;t<r.arrayArgs.length;++t){var c=r.arrayArgs[t];e.push(["t",c,"=array",c,".dtype,","r",c,"=array",c,".order"].join("")),n.push("t"+c),n.push("r"+c),o.push("t"+c),o.push("r"+c+".join()"),h.push("array"+c+".data"),h.push("array"+c+".stride"),h.push("array"+c+".offset|0"),t>0&&(i.push("array"+r.arrayArgs[0]+".shape.length===array"+c+".shape.length+"+(Math.abs(r.arrayBlockIndices[0])-Math.abs(r.arrayBlockIndices[t]))),p.push("array"+r.arrayArgs[0]+".shape[shapeIndex+"+Math.max(0,r.arrayBlockIndices[0])+"]===array"+c+".shape[shapeIndex+"+Math.max(0,r.arrayBlockIndices[t])+"]"))}r.arrayArgs.length>1&&(a.push("if (!("+i.join(" && ")+")) throw new Error('cwise: Arrays do not all have the same dimensionality!')"),a.push("for(var shapeIndex=array"+r.arrayArgs[0]+".shape.length-"+Math.abs(r.arrayBlockIndices[0])+"; shapeIndex-->0;) {"),a.push("if (!("+p.join(" && ")+")) throw new Error('cwise: Arrays do not all have the same shape!')"),a.push("}"));for(var t=0;t<r.scalarArgs.length;++t)h.push("scalar"+r.scalarArgs[t]);e.push(["type=[",o.join(","),"].join()"].join("")),e.push("proc=CACHED[type]"),a.push("var "+e.join(",")),a.push(["if(!proc){","CACHED[type]=proc=compile([",n.join(","),"])}","return proc(",h.join(","),")}"].join("")),r.debug&&console.log("-----Generated thunk:\n"+a.join("\n")+"\n----------");var u=new Function("compile",a.join("\n"));return u(compile.bind(void 0,r))}var compile=require("./compile.js");module.exports=createThunk;
},{"./compile.js":2}],4:[function(require,module,exports){
"use strict";function CompiledArgument(e,r,n){this.name=e,this.lvalue=r,this.rvalue=n,this.count=0}function CompiledRoutine(e,r,n,t){this.body=e,this.args=r,this.thisVars=n,this.localVars=t}function isGlobal(e){if("eval"===e)throw new Error("cwise-parser: eval() not allowed");return"undefined"!=typeof window?e in window:"undefined"!=typeof GLOBAL?e in GLOBAL:"undefined"!=typeof self?e in self:!1}function getArgNames(e){for(var r=e.body[0].expression.callee.params,n=new Array(r.length),t=0;t<r.length;++t)n[t]=r[t].name;return n}function preprocess(e){function r(e){var r=l+e.replace(/\_/g,"__");return y.push(r),r}function n(e){var r="this_"+e.replace(/\_/g,"__");return d.push(r),r}function t(e,r){for(var n=e.range[0],t=e.range[1],i=n+1;t>i;++i)g[i]="";g[n]=r}function i(e){return"'"+e.replace(/\_/g,"\\_").replace(/\'/g,"'")+"'"}function o(e){return g.slice(e.range[0],e.range[1]).join("")}function a(e){return"AssignmentExpression"===e.parent.type&&e.parent.left===e?"="===e.parent.operator?m:m|v:"UpdateExpression"===e.parent.type?m|v:v}for(var s=["(",e,")()"].join(""),p=esprima.parse(s,{range:!0}),l="_inline_"+PREFIX_COUNTER++ +"_",u=getArgNames(p),f=new Array(u.length),c=0;c<u.length;++c)f[c]=new CompiledArgument([l,"arg",c,"_"].join(""),!1,!1);for(var g=new Array(s.length),c=0,h=s.length;h>c;++c)g[c]=s.charAt(c);var y=[],d=[],m=1,v=2;!function _(e,o){if(e.parent=o,"MemberExpression"===e.type)e.computed?(_(e.object,e),_(e.property,e)):"ThisExpression"===e.object.type?t(e,n(e.property.name)):_(e.object,e);else{if("ThisExpression"===e.type)throw new Error("cwise-parser: Computed this is not allowed");if("Identifier"===e.type){var s=e.name,p=u.indexOf(s);if(p>=0){var l=f[p],c=a(e);c&m&&(l.lvalue=!0),c&v&&(l.rvalue=!0),++l.count,t(e,l.name)}else isGlobal(s)||t(e,r(s))}else if("Literal"===e.type)"string"==typeof e.value&&t(e,i(e.value));else{if("WithStatement"===e.type)throw new Error("cwise-parser: with() statements not allowed");for(var g=Object.keys(e),h=0,y=g.length;y>h;++h)if("parent"!==g[h]){var d=e[g[h]];if(d)if(d instanceof Array)for(var w=0;w<d.length;++w)d[w]&&"string"==typeof d[w].type&&_(d[w],e);else"string"==typeof d.type&&_(d,e)}}}}(p.body[0].expression.callee.body,void 0),uniq(y),uniq(d);var w=new CompiledRoutine(o(p.body[0].expression.callee.body),f,d,y);return w}var esprima=require("esprima"),uniq=require("uniq"),PREFIX_COUNTER=0;module.exports=preprocess;
},{"esprima":8,"uniq":17}],5:[function(require,module,exports){
"use strict";function createCWise(e){for(var r in e)REQUIRED_FIELDS.indexOf(r)<0&&OPTIONAL_FIELDS.indexOf(r)<0&&console.warn("cwise: Unknown argument '"+r+"' passed to expression compiler");for(var o=0;o<REQUIRED_FIELDS.length;++o)if(!e[REQUIRED_FIELDS[o]])throw new Error("cwise: Missing argument: "+REQUIRED_FIELDS[o]);return compile({args:e.args,pre:parse(e.pre||function(){}),body:parse(e.body),post:parse(e.post||function(){}),debug:!!e.printCode,funcName:e.funcName||e.body.name||"cwise",blockSize:e.blockSize||64})}var parse=require("cwise-parser"),compile=require("cwise-compiler"),REQUIRED_FIELDS=["args","body"],OPTIONAL_FIELDS=["pre","post","printCode","funcName","blockSize"];module.exports=createCWise;
},{"cwise-compiler":1,"cwise-parser":4}],6:[function(require,module,exports){
module.exports=require("cwise-compiler");
},{"cwise-compiler":1}],7:[function(require,module,exports){
"use strict";function dupe_array(e,r,u){var n=0|e[u];if(0>=n)return[];var t,a=new Array(n);if(u===e.length-1)for(t=0;n>t;++t)a[t]=r;else for(t=0;n>t;++t)a[t]=dupe_array(e,r,u+1);return a}function dupe_number(e,r){var u,n;for(u=new Array(e),n=0;e>n;++n)u[n]=r;return u}function dupe(e,r){switch("undefined"==typeof r&&(r=0),typeof e){case"number":if(e>0)return dupe_number(0|e,r);break;case"object":if("number"==typeof e.length)return dupe_array(e,r,0)}return[]}module.exports=dupe;
},{}],8:[function(require,module,exports){
!function(e,t){"use strict";"function"==typeof define&&define.amd?define(["exports"],t):t("undefined"!=typeof exports?exports:e.esprima={})}(this,function(e){"use strict";function t(e,t){if(!e)throw new Error("ASSERT: "+t)}function n(e){return e>=48&&57>=e}function r(e){return"0123456789abcdefABCDEF".indexOf(e)>=0}function a(e){return"01234567".indexOf(e)>=0}function i(e){return 32===e||9===e||11===e||12===e||160===e||e>=5760&&[5760,6158,8192,8193,8194,8195,8196,8197,8198,8199,8200,8201,8202,8239,8287,12288,65279].indexOf(e)>=0}function o(e){return 10===e||13===e||8232===e||8233===e}function c(e){return 36===e||95===e||e>=65&&90>=e||e>=97&&122>=e||92===e||e>=128&&it.NonAsciiIdentifierStart.test(String.fromCharCode(e))}function u(e){return 36===e||95===e||e>=65&&90>=e||e>=97&&122>=e||e>=48&&57>=e||92===e||e>=128&&it.NonAsciiIdentifierPart.test(String.fromCharCode(e))}function 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r=assign_ops[a];exports[a]=makeOp({args:["array","array","array"],body:{args:["a","b","c"],body:"a=b"+r+"c"},funcName:a}),exports[a+"eq"]=makeOp({args:["array","array"],body:{args:["a","b"],body:"a"+r+"=b"},rvalue:!0,funcName:a+"eq"}),exports[a+"s"]=makeOp({args:["array","array","scalar"],body:{args:["a","b","s"],body:"a=b"+r+"s"},funcName:a+"s"}),exports[a+"seq"]=makeOp({args:["array","scalar"],body:{args:["a","s"],body:"a"+r+"=s"},rvalue:!0,funcName:a+"seq"})}}();var unary_ops={not:"!",bnot:"~",neg:"-",recip:"1.0/"};!function(){for(var a in unary_ops){var r=unary_ops[a];exports[a]=makeOp({args:["array","array"],body:{args:["a","b"],body:"a="+r+"b"},funcName:a}),exports[a+"eq"]=makeOp({args:["array"],body:{args:["a"],body:"a="+r+"a"},rvalue:!0,count:2,funcName:a+"eq"})}}();var binary_ops={and:"&&",or:"||",eq:"===",neq:"!==",lt:"<",gt:">",leq:"<=",geq:">="};!function(){for(var a in binary_ops){var r=binary_ops[a];exports[a]=makeOp({args:["array","array","array"],body:{args:["a","b","c"],body:"a=b"+r+"c"},funcName:a}),exports[a+"s"]=makeOp({args:["array","array","scalar"],body:{args:["a","b","s"],body:"a=b"+r+"s"},funcName:a+"s"}),exports[a+"eq"]=makeOp({args:["array","array"],body:{args:["a","b"],body:"a=a"+r+"b"},rvalue:!0,count:2,funcName:a+"eq"}),exports[a+"seq"]=makeOp({args:["array","scalar"],body:{args:["a","s"],body:"a=a"+r+"s"},rvalue:!0,count:2,funcName:a+"seq"})}}();var math_unary=["abs","acos","asin","atan","ceil","cos","exp","floor","log","round","sin","sqrt","tan"];!function(){for(var a=0;a<math_unary.length;++a){var r=math_unary[a];exports[r]=makeOp({args:["array","array"],pre:{args:[],body:"this_f=Math."+r,thisVars:["this_f"]},body:{args:["a","b"],body:"a=this_f(b)",thisVars:["this_f"]},funcName:r}),exports[r+"eq"]=makeOp({args:["array"],pre:{args:[],body:"this_f=Math."+r,thisVars:["this_f"]},body:{args:["a"],body:"a=this_f(a)",thisVars:["this_f"]},rvalue:!0,count:2,funcName:r+"eq"})}}();var math_comm=["max","min","atan2","pow"];!function(){for(var a=0;a<math_comm.length;++a){var r=math_comm[a];exports[r]=makeOp({args:["array","array","array"],pre:{args:[],body:"this_f=Math."+r,thisVars:["this_f"]},body:{args:["a","b","c"],body:"a=this_f(b,c)",thisVars:["this_f"]},funcName:r}),exports[r+"s"]=makeOp({args:["array","array","scalar"],pre:{args:[],body:"this_f=Math."+r,thisVars:["this_f"]},body:{args:["a","b","c"],body:"a=this_f(b,c)",thisVars:["this_f"]},funcName:r+"s"}),exports[r+"eq"]=makeOp({args:["array","array"],pre:{args:[],body:"this_f=Math."+r,thisVars:["this_f"]},body:{args:["a","b"],body:"a=this_f(a,b)",thisVars:["this_f"]},rvalue:!0,count:2,funcName:r+"eq"}),exports[r+"seq"]=makeOp({args:["array","scalar"],pre:{args:[],body:"this_f=Math."+r,thisVars:["this_f"]},body:{args:["a","b"],body:"a=this_f(a,b)",thisVars:["this_f"]},rvalue:!0,count:2,funcName:r+"seq"})}}();var math_noncomm=["atan2","pow"];!function(){for(var a=0;a<math_noncomm.length;++a){var r=math_noncomm[a];exports[r+"op"]=makeOp({args:["array","array","array"],pre:{args:[],body:"this_f=Math."+r,thisVars:["this_f"]},body:{args:["a","b","c"],body:"a=this_f(c,b)",thisVars:["this_f"]},funcName:r+"op"}),exports[r+"ops"]=makeOp({args:["array","array","scalar"],pre:{args:[],body:"this_f=Math."+r,thisVars:["this_f"]},body:{args:["a","b","c"],body:"a=this_f(c,b)",thisVars:["this_f"]},funcName:r+"ops"}),exports[r+"opeq"]=makeOp({args:["array","array"],pre:{args:[],body:"this_f=Math."+r,thisVars:["this_f"]},body:{args:["a","b"],body:"a=this_f(b,a)",thisVars:["this_f"]},rvalue:!0,count:2,funcName:r+"opeq"}),exports[r+"opseq"]=makeOp({args:["array","scalar"],pre:{args:[],body:"this_f=Math."+r,thisVars:["this_f"]},body:{args:["a","b"],body:"a=this_f(b,a)",thisVars:["this_f"]},rvalue:!0,count:2,funcName:r+"opseq"})}}(),exports.any=compile({args:["array"],pre:EmptyProc,body:{args:[{name:"a",lvalue:!1,rvalue:!0,count:1}],body:"if(a){return true}",localVars:[],thisVars:[]},post:{args:[],localVars:[],thisVars:[],body:"return false"},funcName:"any"}),exports.all=compile({args:["array"],pre:EmptyProc,body:{args:[{name:"x",lvalue:!1,rvalue:!0,count:1}],body:"if(!x){return false}",localVars:[],thisVars:[]},post:{args:[],localVars:[],thisVars:[],body:"return true"},funcName:"all"}),exports.sum=compile({args:["array"],pre:{args:[],localVars:[],thisVars:["this_s"],body:"this_s=0"},body:{args:[{name:"a",lvalue:!1,rvalue:!0,count:1}],body:"this_s+=a",localVars:[],thisVars:["this_s"]},post:{args:[],localVars:[],thisVars:["this_s"],body:"return this_s"},funcName:"sum"}),exports.prod=compile({args:["array"],pre:{args:[],localVars:[],thisVars:["this_s"],body:"this_s=1"},body:{args:[{name:"a",lvalue:!1,rvalue:!0,count:1}],body:"this_s*=a",localVars:[],thisVars:["this_s"]},post:{args:[],localVars:[],thisVars:["this_s"],body:"return this_s"},funcName:"prod"}),exports.norm2squared=compile({args:["array"],pre:{args:[],localVars:[],thisVars:["this_s"],body:"this_s=0"},body:{args:[{name:"a",lvalue:!1,rvalue:!0,count:2}],body:"this_s+=a*a",localVars:[],thisVars:["this_s"]},post:{args:[],localVars:[],thisVars:["this_s"],body:"return this_s"},funcName:"norm2squared"}),exports.norm2=compile({args:["array"],pre:{args:[],localVars:[],thisVars:["this_s"],body:"this_s=0"},body:{args:[{name:"a",lvalue:!1,rvalue:!0,count:2}],body:"this_s+=a*a",localVars:[],thisVars:["this_s"]},post:{args:[],localVars:[],thisVars:["this_s"],body:"return Math.sqrt(this_s)"},funcName:"norm2"}),exports.norminf=compile({args:["array"],pre:{args:[],localVars:[],thisVars:["this_s"],body:"this_s=0"},body:{args:[{name:"a",lvalue:!1,rvalue:!0,count:4}],body:"if(-a>this_s){this_s=-a}else if(a>this_s){this_s=a}",localVars:[],thisVars:["this_s"]},post:{args:[],localVars:[],thisVars:["this_s"],body:"return this_s"},funcName:"norminf"}),exports.norm1=compile({args:["array"],pre:{args:[],localVars:[],thisVars:["this_s"],body:"this_s=0"},body:{args:[{name:"a",lvalue:!1,rvalue:!0,count:3}],body:"this_s+=a<0?-a:a",localVars:[],thisVars:["this_s"]},post:{args:[],localVars:[],thisVars:["this_s"],body:"return this_s"},funcName:"norm1"}),exports.sup=compile({args:["array"],pre:{body:"this_h=-Infinity",args:[],thisVars:["this_h"],localVars:[]},body:{body:"if(_inline_1_arg0_>this_h)this_h=_inline_1_arg0_",args:[{name:"_inline_1_arg0_",lvalue:!1,rvalue:!0,count:2}],thisVars:["this_h"],localVars:[]},post:{body:"return this_h",args:[],thisVars:["this_h"],localVars:[]}}),exports.inf=compile({args:["array"],pre:{body:"this_h=Infinity",args:[],thisVars:["this_h"],localVars:[]},body:{body:"if(_inline_1_arg0_<this_h)this_h=_inline_1_arg0_",args:[{name:"_inline_1_arg0_",lvalue:!1,rvalue:!0,count:2}],thisVars:["this_h"],localVars:[]},post:{body:"return this_h",args:[],thisVars:["this_h"],localVars:[]}}),exports.argmin=compile({args:["index","array","shape"],pre:{body:"{this_v=Infinity;this_i=_inline_0_arg2_.slice(0)}",args:[{name:"_inline_0_arg0_",lvalue:!1,rvalue:!1,count:0},{name:"_inline_0_arg1_",lvalue:!1,rvalue:!1,count:0},{name:"_inline_0_arg2_",lvalue:!1,rvalue:!0,count:1}],thisVars:["this_i","this_v"],localVars:[]},body:{body:"{if(_inline_1_arg1_<this_v){this_v=_inline_1_arg1_;for(var _inline_1_k=0;_inline_1_k<_inline_1_arg0_.length;++_inline_1_k){this_i[_inline_1_k]=_inline_1_arg0_[_inline_1_k]}}}",args:[{name:"_inline_1_arg0_",lvalue:!1,rvalue:!0,count:2},{name:"_inline_1_arg1_",lvalue:!1,rvalue:!0,count:2}],thisVars:["this_i","this_v"],localVars:["_inline_1_k"]},post:{body:"{return this_i}",args:[],thisVars:["this_i"],localVars:[]}}),exports.argmax=compile({args:["index","array","shape"],pre:{body:"{this_v=-Infinity;this_i=_inline_0_arg2_.slice(0)}",args:[{name:"_inline_0_arg0_",lvalue:!1,rvalue:!1,count:0},{name:"_inline_0_arg1_",lvalue:!1,rvalue:!1,count:0},{name:"_inline_0_arg2_",lvalue:!1,rvalue:!0,count:1}],thisVars:["this_i","this_v"],localVars:[]},body:{body:"{if(_inline_1_arg1_>this_v){this_v=_inline_1_arg1_;for(var _inline_1_k=0;_inline_1_k<_inline_1_arg0_.length;++_inline_1_k){this_i[_inline_1_k]=_inline_1_arg0_[_inline_1_k]}}}",args:[{name:"_inline_1_arg0_",lvalue:!1,rvalue:!0,count:2},{name:"_inline_1_arg1_",lvalue:!1,rvalue:!0,count:2}],thisVars:["this_i","this_v"],localVars:["_inline_1_k"]},post:{body:"{return this_i}",args:[],thisVars:["this_i"],localVars:[]}}),exports.random=makeOp({args:["array"],pre:{args:[],body:"this_f=Math.random",thisVars:["this_f"]},body:{args:["a"],body:"a=this_f()",thisVars:["this_f"]},funcName:"random"}),exports.assign=makeOp({args:["array","array"],body:{args:["a","b"],body:"a=b"},funcName:"assign"}),exports.assigns=makeOp({args:["array","scalar"],body:{args:["a","b"],body:"a=b"},funcName:"assigns"}),exports.equals=compile({args:["array","array"],pre:EmptyProc,body:{args:[{name:"x",lvalue:!1,rvalue:!0,count:1},{name:"y",lvalue:!1,rvalue:!0,count:1}],body:"if(x!==y){return false}",localVars:[],thisVars:[]},post:{args:[],localVars:[],thisVars:[],body:"return true"},funcName:"equals"});
},{"cwise-compiler":1}],13:[function(require,module,exports){
"use strict";var ndarray=require("ndarray"),do_convert=require("./doConvert.js");module.exports=function(r,e){for(var n=[],a=r,t=1;a instanceof Array;)n.push(a.length),t*=a.length,a=a[0];return 0===n.length?ndarray():(e||(e=ndarray(new Float64Array(t),n)),do_convert(e,r),e)};
},{"./doConvert.js":14,"ndarray":16}],14:[function(require,module,exports){
module.exports=require("cwise-compiler")({args:["array","scalar","index"],pre:{body:"{}",args:[],thisVars:[],localVars:[]},body:{body:"{\nvar _inline_1_v=_inline_1_arg1_,_inline_1_i\nfor(_inline_1_i=0;_inline_1_i<_inline_1_arg2_.length-1;++_inline_1_i) {\n_inline_1_v=_inline_1_v[_inline_1_arg2_[_inline_1_i]]\n}\n_inline_1_arg0_=_inline_1_v[_inline_1_arg2_[_inline_1_arg2_.length-1]]\n}",args:[{name:"_inline_1_arg0_",lvalue:!0,rvalue:!1,count:1},{name:"_inline_1_arg1_",lvalue:!1,rvalue:!0,count:1},{name:"_inline_1_arg2_",lvalue:!1,rvalue:!0,count:4}],thisVars:[],localVars:["_inline_1_i","_inline_1_v"]},post:{body:"{}",args:[],thisVars:[],localVars:[]},funcName:"convert",blockSize:64});
},{"cwise-compiler":1}],15:[function(require,module,exports){
"use strict";var dup=require("dup"),do_unpack=require("cwise/lib/wrapper")({args:["array","scalar","index"],pre:{body:"{}",args:[],thisVars:[],localVars:[]},body:{body:"{var _inline_1_a,_inline_1_e=_inline_1_arg1_;for(_inline_1_a=0;_inline_1_a<_inline_1_arg2_.length-1;++_inline_1_a)_inline_1_e=_inline_1_e[_inline_1_arg2_[_inline_1_a]];_inline_1_e[_inline_1_arg2_[_inline_1_arg2_.length-1]]=_inline_1_arg0_}",args:[{name:"_inline_1_arg0_",lvalue:!1,rvalue:!0,count:1},{name:"_inline_1_arg1_",lvalue:!1,rvalue:!0,count:1},{name:"_inline_1_arg2_",lvalue:!1,rvalue:!0,count:4}],thisVars:[],localVars:["_inline_1_a","_inline_1_e"]},post:{body:"{}",args:[],thisVars:[],localVars:[]},debug:!1,funcName:"unpackCwise",blockSize:64});module.exports=function(_){var n=dup(_.shape);return do_unpack(_,n),n};
},{"cwise/lib/wrapper":6,"dup":7}],16:[function(require,module,exports){
function compare1st(t,r){return t[0]-r[0]}function order(){var t,r=this.stride,e=new Array(r.length);for(t=0;t<e.length;++t)e[t]=[Math.abs(r[t]),t];e.sort(compare1st);var n=new Array(e.length);for(t=0;t<n.length;++t)n[t]=e[t][1];return n}function compileConstructor(t,r){var e=["View",r,"d",t].join("");0>r&&(e="View_Nil"+t);var n="generic"===t;if(-1===r){var o="function "+e+"(a){this.data=a;};var proto="+e+".prototype;proto.dtype='"+t+"';proto.index=function(){return -1};proto.size=0;proto.dimension=-1;proto.shape=proto.stride=proto.order=[];proto.lo=proto.hi=proto.transpose=proto.step=function(){return new "+e+"(this.data);};proto.get=proto.set=function(){};proto.pick=function(){return null};return function construct_"+e+"(a){return new "+e+"(a);}",i=new Function(o);return i()}if(0===r){var o="function "+e+"(a,d) {this.data = a;this.offset = d};var proto="+e+".prototype;proto.dtype='"+t+"';proto.index=function(){return this.offset};proto.dimension=0;proto.size=1;proto.shape=proto.stride=proto.order=[];proto.lo=proto.hi=proto.transpose=proto.step=function "+e+"_copy() {return new "+e+"(this.data,this.offset)};proto.pick=function "+e+"_pick(){return TrivialArray(this.data);};proto.valueOf=proto.get=function "+e+"_get(){return "+(n?"this.data.get(this.offset)":"this.data[this.offset]")+"};proto.set=function "+e+"_set(v){return "+(n?"this.data.set(this.offset,v)":"this.data[this.offset]=v")+"};return function construct_"+e+"(a,b,c,d){return new "+e+"(a,d)}",i=new Function("TrivialArray",o);return i(CACHED_CONSTRUCTORS[t][0])}var o=["'use strict'"],a=iota(r),s=a.map(function(t){return"i"+t}),u="this.offset+"+a.map(function(t){return"this.stride["+t+"]*i"+t}).join("+"),p=a.map(function(t){return"b"+t}).join(","),f=a.map(function(t){return"c"+t}).join(",");o.push("function "+e+"(a,"+p+","+f+",d){this.data=a","this.shape=["+p+"]","this.stride=["+f+"]","this.offset=d|0}","var proto="+e+".prototype","proto.dtype='"+t+"'","proto.dimension="+r),o.push("Object.defineProperty(proto,'size',{get:function "+e+"_size(){return "+a.map(function(t){return"this.shape["+t+"]"}).join("*"),"}})"),1===r?o.push("proto.order=[0]"):(o.push("Object.defineProperty(proto,'order',{get:"),4>r?(o.push("function "+e+"_order(){"),2===r?o.push("return (Math.abs(this.stride[0])>Math.abs(this.stride[1]))?[1,0]:[0,1]}})"):3===r&&o.push("var s0=Math.abs(this.stride[0]),s1=Math.abs(this.stride[1]),s2=Math.abs(this.stride[2]);if(s0>s1){if(s1>s2){return [2,1,0];}else if(s0>s2){return [1,2,0];}else{return [1,0,2];}}else if(s0>s2){return [2,0,1];}else if(s2>s1){return [0,1,2];}else{return [0,2,1];}}})")):o.push("ORDER})")),o.push("proto.set=function "+e+"_set("+s.join(",")+",v){"),n?o.push("return this.data.set("+u+",v)}"):o.push("return this.data["+u+"]=v}"),o.push("proto.get=function "+e+"_get("+s.join(",")+"){"),n?o.push("return this.data.get("+u+")}"):o.push("return this.data["+u+"]}"),o.push("proto.index=function "+e+"_index(",s.join(),"){return "+u+"}"),o.push("proto.hi=function "+e+"_hi("+s.join(",")+"){return new "+e+"(this.data,"+a.map(function(t){return["(typeof i",t,"!=='number'||i",t,"<0)?this.shape[",t,"]:i",t,"|0"].join("")}).join(",")+","+a.map(function(t){return"this.stride["+t+"]"}).join(",")+",this.offset)}");var h=a.map(function(t){return"a"+t+"=this.shape["+t+"]"}),c=a.map(function(t){return"c"+t+"=this.stride["+t+"]"});o.push("proto.lo=function "+e+"_lo("+s.join(",")+"){var b=this.offset,d=0,"+h.join(",")+","+c.join(","));for(var d=0;r>d;++d)o.push("if(typeof i"+d+"==='number'&&i"+d+">=0){d=i"+d+"|0;b+=c"+d+"*d;a"+d+"-=d}");o.push("return new "+e+"(this.data,"+a.map(function(t){return"a"+t}).join(",")+","+a.map(function(t){return"c"+t}).join(",")+",b)}"),o.push("proto.step=function "+e+"_step("+s.join(",")+"){var "+a.map(function(t){return"a"+t+"=this.shape["+t+"]"}).join(",")+","+a.map(function(t){return"b"+t+"=this.stride["+t+"]"}).join(",")+",c=this.offset,d=0,ceil=Math.ceil");for(var d=0;r>d;++d)o.push("if(typeof i"+d+"==='number'){d=i"+d+"|0;if(d<0){c+=b"+d+"*(a"+d+"-1);a"+d+"=ceil(-a"+d+"/d)}else{a"+d+"=ceil(a"+d+"/d)}b"+d+"*=d}");o.push("return new "+e+"(this.data,"+a.map(function(t){return"a"+t}).join(",")+","+a.map(function(t){return"b"+t}).join(",")+",c)}");for(var y=new Array(r),l=new Array(r),d=0;r>d;++d)y[d]="a[i"+d+"]",l[d]="b[i"+d+"]";o.push("proto.transpose=function "+e+"_transpose("+s+"){"+s.map(function(t,r){return t+"=("+t+"===undefined?"+r+":"+t+"|0)"}).join(";"),"var a=this.shape,b=this.stride;return new "+e+"(this.data,"+y.join(",")+","+l.join(",")+",this.offset)}"),o.push("proto.pick=function "+e+"_pick("+s+"){var a=[],b=[],c=this.offset");for(var d=0;r>d;++d)o.push("if(typeof i"+d+"==='number'&&i"+d+">=0){c=(c+this.stride["+d+"]*i"+d+")|0}else{a.push(this.shape["+d+"]);b.push(this.stride["+d+"])}");o.push("var ctor=CTOR_LIST[a.length+1];return ctor(this.data,a,b,c)}"),o.push("return function construct_"+e+"(data,shape,stride,offset){return new "+e+"(data,"+a.map(function(t){return"shape["+t+"]"}).join(",")+","+a.map(function(t){return"stride["+t+"]"}).join(",")+",offset)}");var i=new Function("CTOR_LIST","ORDER",o.join("\n"));return i(CACHED_CONSTRUCTORS[t],order)}function arrayDType(t){if(isBuffer(t))return"buffer";if(hasTypedArrays)switch(Object.prototype.toString.call(t)){case"[object Float64Array]":return"float64";case"[object Float32Array]":return"float32";case"[object Int8Array]":return"int8";case"[object Int16Array]":return"int16";case"[object Int32Array]":return"int32";case"[object Uint8Array]":return"uint8";case"[object Uint16Array]":return"uint16";case"[object Uint32Array]":return"uint32";case"[object Uint8ClampedArray]":return"uint8_clamped"}return Array.isArray(t)?"array":"generic"}function wrappedNDArrayCtor(t,r,e,n){if(void 0===t){var o=CACHED_CONSTRUCTORS.array[0];return o([])}"number"==typeof t&&(t=[t]),void 0===r&&(r=[t.length]);var i=r.length;if(void 0===e){e=new Array(i);for(var a=i-1,s=1;a>=0;--a)e[a]=s,s*=r[a]}if(void 0===n){n=0;for(var a=0;i>a;++a)e[a]<0&&(n-=(r[a]-1)*e[a])}for(var u=arrayDType(t),p=CACHED_CONSTRUCTORS[u];p.length<=i+1;)p.push(compileConstructor(u,p.length-1));var o=p[i+1];return o(t,r,e,n)}var iota=require("iota-array"),isBuffer=require("is-buffer"),hasTypedArrays="undefined"!=typeof Float64Array,CACHED_CONSTRUCTORS={float32:[],float64:[],int8:[],int16:[],int32:[],uint8:[],uint16:[],uint32:[],array:[],uint8_clamped:[],buffer:[],generic:[]};module.exports=wrappedNDArrayCtor;
},{"iota-array":10,"is-buffer":11}],17:[function(require,module,exports){
"use strict";function unique_pred(n,e){for(var u=1,t=n.length,i=n[0],r=n[0],o=1;t>o;++o)if(r=i,i=n[o],e(i,r)){if(o===u){u++;continue}n[u++]=i}return n.length=u,n}function unique_eq(n){for(var e=1,u=n.length,t=n[0],i=n[0],r=1;u>r;++r,i=t)if(i=t,t=n[r],t!==i){if(r===e){e++;continue}n[e++]=t}return n.length=e,n}function unique(n,e,u){return 0===n.length?n:e?(u||n.sort(e),unique_pred(n,e)):(u||n.sort(),unique_eq(n))}module.exports=unique;
},{}],18:[function(require,module,exports){
"use strict";function _interopRequireDefault(e){return e&&e.__esModule?e:{"default":e}}function _toConsumableArray(e){if(Array.isArray(e)){for(var t=0,r=Array(e.length);t<e.length;t++)r[t]=e[t];return r}return Array.from(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function _possibleConstructorReturn(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}function _inherits(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}Object.defineProperty(exports,"__esModule",{value:!0});var _slicedToArray=function(){function e(e,t){var r=[],a=!0,i=!1,n=void 0;try{for(var u,s=e[Symbol.iterator]();!(a=(u=s.next()).done)&&(r.push(u.value),!t||r.length!==t);a=!0);}catch(o){i=!0,n=o}finally{try{!a&&s["return"]&&s["return"]()}finally{if(i)throw n}}return r}return function(t,r){if(Array.isArray(t))return t;if(Symbol.iterator in Object(t))return e(t,r);throw new TypeError("Invalid attempt to destructure non-iterable instance")}}(),_createClass=function(){function e(e,t){for(var r=0;r<t.length;r++){var a=t[r];a.enumerable=a.enumerable||!1,a.configurable=!0,"value"in a&&(a.writable=!0),Object.defineProperty(e,a.key,a)}}return function(t,r,a){return r&&e(t.prototype,r),a&&e(t,a),t}}(),_events=require("events"),_ndarray=require("ndarray"),_ndarray2=_interopRequireDefault(_ndarray),_ndarrayOps=require("ndarray-ops"),_ndarrayOps2=_interopRequireDefault(_ndarrayOps),_ndarrayPack=require("ndarray-pack"),_ndarrayPack2=_interopRequireDefault(_ndarrayPack),_ndarrayUnpack=require("ndarray-unpack"),_ndarrayUnpack2=_interopRequireDefault(_ndarrayUnpack),_cwise=require("cwise"),_cwise2=_interopRequireDefault(_cwise),_randn=require("./randn"),_randn2=_interopRequireDefault(_randn),_pairwiseDistances=require("./pairwise-distances"),_pairwiseDistances2=_interopRequireDefault(_pairwiseDistances),_jointProbabilities=require("./joint-probabilities"),_jointProbabilities2=_interopRequireDefault(_jointProbabilities),_klDivergence=require("./kl-divergence"),_klDivergence2=_interopRequireDefault(_klDivergence),TSNE=function(e){function t(e){_classCallCheck(this,t);var r=_possibleConstructorReturn(this,Object.getPrototypeOf(t).call(this));return e=e||{},r.dim=e.dim||2,r.perplexity=e.perplexity||30,r.earlyExaggeration=e.earlyExaggeration||4,r.learningRate=e.learningRate||1e3,r.nIter=e.nIter||1e3,r.metric=e.metric||"euclidean",r.barneshut=e.barneshut||!1,r.inputData=null,r.outputEmbedding=null,r}return _inherits(t,e),_createClass(t,[{key:"init",value:function(e){e=e||{};var t=e.data||[],r=e.type||"dense";if("dense"===r)this.inputData=(0,_ndarrayPack2["default"])(t);else{if("sparse"!==r)throw new Error("input data type must be dense or sparse");for(var a=[],i=1,n=function(e){var r=Math.max.apply(null,t.map(function(t){return t[e]}))+1;a.push(r),i*=r},u=0;u<t[0].length;u++)n(u);this.inputData=(0,_ndarray2["default"])(new Float64Array(i),a);var s=!0,o=!1,l=void 0;try{for(var d,p=t[Symbol.iterator]();!(s=(d=p.next()).done);s=!0){var c,f=d.value;(c=this.inputData).set.apply(c,_toConsumableArray(f).concat([1]))}}catch(y){o=!0,l=y}finally{try{!s&&p["return"]&&p["return"]()}finally{if(o)throw l}}}this.outputEmbedding=(0,_randn2["default"])(this.inputData.shape[0],this.dim)}},{key:"run",value:function(){this.emit("progressStatus","Calculating pairwise distances"),this.distances=(0,_pairwiseDistances2["default"])(this.inputData,this.metric),this.emit("progressStatus","Calculating joint probabilities"),this.alpha=Math.max(this.dim-1,1),this.P=(0,_jointProbabilities2["default"])(this.distances,this.perplexity);var e=Number.MAX_VALUE,t=0;this.emit("progressStatus","Early exaggeration with momentum 0.5"),_ndarrayOps2["default"].mulseq(this.P,this.earlyExaggeration);var r=this._gradDesc(t,50,.5,0,0),a=_slicedToArray(r,2);e=a[0],t=a[1],this.emit("progressStatus","Early exaggeration with momentum 0.8");var i=this._gradDesc(t+1,100,.8,0,0),n=_slicedToArray(i,2);e=n[0],t=n[1],this.emit("progressStatus","Final optimization with momentum 0.8"),_ndarrayOps2["default"].divseq(this.P,this.earlyExaggeration);var u=this._gradDesc(t+1,this.nIter,.8,1e-6,1e-6),s=_slicedToArray(u,2);return e=s[0],t=s[1],this.emit("progressStatus","Optimization end"),[e,t]}},{key:"rerun",value:function(){this.outputEmbedding=(0,_randn2["default"])(this.inputData.shape[0],this.dim);var e=this.run(),t=_slicedToArray(e,2),r=t[0],a=t[1];return[r,a]}},{key:"getOutput",value:function(){return(0,_ndarrayUnpack2["default"])(this.outputEmbedding)}},{key:"getOutputScaled",value:function(){for(var e=(0,_ndarray2["default"])(new Float64Array(this.outputEmbedding.size),this.outputEmbedding.shape),t=(0,_ndarray2["default"])(new Float64Array(this.outputEmbedding.shape[0]),[this.outputEmbedding.shape[0]]),r=0;r<this.outputEmbedding.shape[1];r++){var a=_ndarrayOps2["default"].sup(_ndarrayOps2["default"].abs(t,this.outputEmbedding.pick(null,r)));_ndarrayOps2["default"].divs(e.pick(null,r),this.outputEmbedding.pick(null,r),a)}return(0,_ndarrayUnpack2["default"])(e)}},{key:"_gradDesc",value:function(e,t,r){for(var a=arguments.length<=3||void 0===arguments[3]?1e-6:arguments[3],i=arguments.length<=4||void 0===arguments[4]?1e-6:arguments[4],n=30,u=(0,_ndarray2["default"])(new Float64Array(this.outputEmbedding.size),this.outputEmbedding.shape),s=new Float64Array(this.outputEmbedding.size),o=0;o<s.length;o++)s[o]=1;var l=(0,_ndarray2["default"])(s,this.outputEmbedding.shape),d=Number.MAX_VALUE,p=Number.MAX_VALUE,c=0,f=(0,_cwise2["default"])({args:["array"],pre:function(e){this.sum=0},body:function(e){this.sum+=e*e},post:function(e){return Math.sqrt(this.sum)}}),y=(0,_cwise2["default"])({args:["array","array","array"],body:function(e,t,r){t*r>=0?e+=.05:e*=.95,e=Math.max(e,.01)}}),h=void 0;for(h=e;t>h;h++){var _=(0,_klDivergence2["default"])(this.outputEmbedding,this.P,this.alpha),m=_slicedToArray(_,2),g=m[0],b=m[1],v=Math.abs(g-d);d=g;var w=f(b);if(this.emit("progressIter",[h,d,w]),p>d)p=d,c=h;else if(h-c>n)break;if(a>=w)break;if(i>=v)break;y(l,u,b),_ndarrayOps2["default"].muleq(b,l);var E=(0,_ndarray2["default"])(new Float64Array(b.size),b.shape);_ndarrayOps2["default"].muls(E,b,this.learningRate),_ndarrayOps2["default"].mulseq(u,r),_ndarrayOps2["default"].subeq(u,E),_ndarrayOps2["default"].addeq(this.outputEmbedding,u),this.emit("progressData",this.getOutputScaled())}return[d,h]}}]),t}(_events.EventEmitter);exports["default"]=TSNE,module.exports=exports["default"];
},{"./joint-probabilities":19,"./kl-divergence":20,"./pairwise-distances":21,"./randn":22,"cwise":5,"events":9,"ndarray":16,"ndarray-ops":12,"ndarray-pack":13,"ndarray-unpack":15}],19:[function(require,module,exports){
"use strict";function _interopRequireDefault(r){return r&&r.__esModule?r:{"default":r}}Object.defineProperty(exports,"__esModule",{value:!0}),exports["default"]=function(r,a){for(var e=100,t=r.shape[0],d=(0,_ndarray2["default"])(new Float64Array(t*t),[t,t]),o=(0,_ndarray2["default"])(new Float64Array(t*t),[t,t]),u=void 0,n=void 0,s=1/0,_=0,f=Math.log(a),i=void 0,l=void 0,p=void 0,y=void 0,E=0;t>E;E++){u=1,n=-(1/0),s=1/0;for(var O=0;e>O;O++){for(var v=0;t>v;v++)d.set(E,v,Math.exp(-r.get(E,v)*u));d.set(E,E,0),p=0;for(var v=0;t>v;v++)p+=d.get(E,v);0==p&&(p=EPSILON_DBL),y=0;for(var v=0;t>v;v++)d.set(E,v,d.get(E,v)/p),y+=r.get(E,v)*d.get(E,v);if(l=Math.log(p)+u*y,i=l-f,Math.abs(i)<=PERPLEXITY_TOLERANCE)break;i>0?(n=u,u=s==1/0?2*u:(u+s)/2):(s=u,n==-(1/0)?u/=2:u=(u+n)/2)}_+=u}_ndarrayOps2["default"].add(o,d,d.transpose(1,0));var L=Math.max(_ndarrayOps2["default"].sum(o),MACHINE_EPSILON);return _ndarrayOps2["default"].divseq(o,L),_ndarrayOps2["default"].maxseq(o,MACHINE_EPSILON),o};var _ndarray=require("ndarray"),_ndarray2=_interopRequireDefault(_ndarray),_ndarrayOps=require("ndarray-ops"),_ndarrayOps2=_interopRequireDefault(_ndarrayOps),EPSILON_DBL=1e-7,MACHINE_EPSILON=Number.EPSILON||2.220446049250313e-16,PERPLEXITY_TOLERANCE=1e-5;module.exports=exports["default"];
},{"ndarray":16,"ndarray-ops":12}],20:[function(require,module,exports){
"use strict";function _interopRequireDefault(a){return a&&a.__esModule?a:{"default":a}}Object.defineProperty(exports,"__esModule",{value:!0}),exports["default"]=function(a,r,e){var d=a.shape[0],s=a.shape[1],t=(0,_ndarray2["default"])(new Float64Array(d*d),[d,d]),u=(0,_pairwiseDistances2["default"])(a,"euclidean");square(u);var n=(e+1)/-2;_ndarrayOps2["default"].powseq(_ndarrayOps2["default"].divseq(_ndarrayOps2["default"].addseq(u,1),e),n);for(var l=0;d>l;l++)u.set(l,l,0);var _=Math.max(_ndarrayOps2["default"].sum(u),MACHINE_EPSILON);_ndarrayOps2["default"].divs(t,u,_),_ndarrayOps2["default"].maxseq(t,MACHINE_EPSILON);var i=(0,_ndarray2["default"])(new Float64Array(d*d),[d,d]),p=(0,_ndarray2["default"])(new Float64Array(d*d),[d,d]);_ndarrayOps2["default"].div(i,r,t),_ndarrayOps2["default"].logeq(i),_ndarrayOps2["default"].assign(p,r);var f=_ndarrayOps2["default"].sum(_ndarrayOps2["default"].muleq(i,p)),y=(0,_ndarray2["default"])(new Float64Array(a.size),a.shape),o=(0,_ndarray2["default"])(new Float64Array(d*d),[d,d]);_ndarrayOps2["default"].sub(o,r,t),_ndarrayOps2["default"].muleq(o,u);for(var l=0;d>l;l++)for(var O=0;s>O;O++){var q=(0,_ndarray2["default"])(new Float64Array(a.shape[0]),[a.shape[0]]);_ndarrayOps2["default"].assign(q,a.pick(null,O)),_ndarrayOps2["default"].addseq(_ndarrayOps2["default"].negeq(q),a.get(l,O)),_ndarrayOps2["default"].muleq(q,o.pick(l,null)),y.set(l,O,_ndarrayOps2["default"].sum(q))}var c=2*(e+1)/e;return _ndarrayOps2["default"].mulseq(y,c),[f,y]};var _ndarray=require("ndarray"),_ndarray2=_interopRequireDefault(_ndarray),_ndarrayOps=require("ndarray-ops"),_ndarrayOps2=_interopRequireDefault(_ndarrayOps),_cwise=require("cwise"),_cwise2=_interopRequireDefault(_cwise),_pairwiseDistances=require("./pairwise-distances"),_pairwiseDistances2=_interopRequireDefault(_pairwiseDistances),MACHINE_EPSILON=Number.EPSILON||2.220446049250313e-16,square=(0,_cwise2["default"])({args:["array"],body:function(a){a*=a}});module.exports=exports["default"];
},{"./pairwise-distances":21,"cwise":5,"ndarray":16,"ndarray-ops":12}],21:[function(require,module,exports){
"use strict";function _interopRequireDefault(t){return t&&t.__esModule?t:{"default":t}}Object.defineProperty(exports,"__esModule",{value:!0}),exports["default"]=function(t,r){var a=t.shape[0],e=(0,_ndarray2["default"])(new Float64Array(a*a),[a,a]);switch(r){case"euclidean":for(var i=0;a>i;i++)for(var s=i+1;a>s;s++){var n=euclidean(t.pick(i,null),t.pick(s,null));e.set(i,s,n),e.set(s,i,n)}break;case"manhattan":for(var i=0;a>i;i++)for(var s=i+1;a>s;s++){var n=manhattan(t.pick(i,null),t.pick(s,null));e.set(i,s,n),e.set(s,i,n)}break;case"jaccard":for(var i=0;a>i;i++)for(var s=i+1;a>s;s++){var n=jaccard(t.pick(i,null),t.pick(s,null));e.set(i,s,n),e.set(s,i,n)}break;case"dice":for(var i=0;a>i;i++)for(var s=i+1;a>s;s++){var n=dice(t.pick(i,null),t.pick(s,null));e.set(i,s,n),e.set(s,i,n)}}return e};var _ndarray=require("ndarray"),_ndarray2=_interopRequireDefault(_ndarray),_cwise=require("cwise"),_cwise2=_interopRequireDefault(_cwise),euclidean=(0,_cwise2["default"])({args:["array","array"],pre:function(t,r){this.sum=0},body:function(t,r){var a=t-r;this.sum+=a*a},post:function(t,r){return Math.sqrt(this.sum)}}),manhattan=(0,_cwise2["default"])({args:["array","array"],pre:function(t,r){this.sum=0},body:function(t,r){this.sum+=Math.abs(t-r)},post:function(t,r){return this.sum}}),jaccard=(0,_cwise2["default"])({args:["array","array"],pre:function(t,r){this.tf=0,this.tt=0},body:function(t,r){var a=Math.round(t),e=Math.round(r);this.tf+=+(a!=e),this.tt+=+(1==a&&1==e)},post:function(t,r){return this.tf+this.tt===0?1:this.tf/(this.tf+this.tt)}}),dice=(0,_cwise2["default"])({args:["array","array"],pre:function(t,r){this.tf=0,this.tt=0},body:function(t,r){var a=Math.round(t),e=Math.round(r);this.tf+=+(a!=e),this.tt+=+(1==a&&1==e)},post:function(t,r){return this.tf+this.tt===0?1:this.tf/(this.tf+2*this.tt)}});module.exports=exports["default"];
},{"cwise":5,"ndarray":16}],22:[function(require,module,exports){
"use strict";function _interopRequireDefault(r){return r&&r.__esModule?r:{"default":r}}function gaussRandom(){var r=2*Math.random()-1,e=2*Math.random()-1,a=r*r+e*e;return 0==a||a>1?gaussRandom():r*Math.sqrt(-2*Math.log(a)/a)}Object.defineProperty(exports,"__esModule",{value:!0}),exports["default"]=function(r,e){for(var a=new Float64Array(r*e),t=0;t<a.length;t++)a[t]=1e-4*gaussRandom();return(0,_ndarray2["default"])(a,[r,e])};var _ndarray=require("ndarray"),_ndarray2=_interopRequireDefault(_ndarray);module.exports=exports["default"];
},{"ndarray":16}]},{},[18])(18)
});
self.onmessage = function(e){
let msg = e.data,
currcost = 100;
let model = new TSNE({
dim: msg.dim || 2,
perplexity: msg.perplexity || 100.0,
earlyExaggeration: msg.earlyExaggeration || 4.0,
learningRate: msg.learningRate || 100.0,
nIter: msg.nIter || 500,
metric: msg.metric || 'euclidean'
});
model.init({
data: msg.data,
type: 'dense'
});
model.on('progressData', function(pos){
self.postMessage({pos: model.getOutputScaled()});
});
model.on('progressIter', function (iter) {
currcost = currcost * 0.9 + iter[1];
self.postMessage({
iterations: iter[0],
cost: iter[1],
stop: currcost < 20
});
});
let run = model.run();
self.postMessage({
err: run[0],
iterations: run[1],
stop: true
});
};
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