This matrix shows three-dimensional data where the dimensions are defined as session count, correlation between the data shown and another given factor as well as the size of each circle.
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D3 Correlation Matrix
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| license: mit |
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| var margin = {top: 20, right: 20, bottom: 30, left: 30}, | |
| width = 500 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var dataset = [ | |
| {x: 0.4, y: 0.6, r: 0.3, label: "Scubadiving"}, | |
| {x: 0.7, y: 0.5, r: 0.95, label: "Rollerblading"}, | |
| {x: 0.0, y: 0.5, r: 0.98, label: "Swimming"}, | |
| {x: 1.0, y: 0.7, r: 0.7, label: "Weightlifting"}, | |
| {x: 0.2, y: 0.0, r: 0.4, label: "Running"}, | |
| {x: 0.2, y: 1.0, r: 0.3, label: "Yoga"} | |
| ]; | |
| var xScale = d3.scale.linear() | |
| .range([0, width]); | |
| var yScale = d3.scale.linear() | |
| .range([height, 0]); | |
| var rScale = d3.scale.pow() | |
| .exponent(0.7) | |
| .range([0, 0.08*(width+height)]); | |
| var colorScale = d3.scale.category20c(); | |
| var xAxis = d3.svg.axis() | |
| .scale(xScale) | |
| .orient("bottom") | |
| .tickSize(-height) | |
| .ticks(2) | |
| .tickPadding(12) | |
| .tickFormat(function(val) { | |
| return (val === 0.5) ? | |
| 'Session Count' : | |
| (val === 0) ? | |
| 'Low' : | |
| "High"; | |
| }); | |
| var yAxis = d3.svg.axis() | |
| .scale(yScale) | |
| .orient("bottom") | |
| .tickSize(-width) | |
| .ticks(2) | |
| .tickPadding(12) | |
| .tickFormat(function(val) { | |
| return (val === 0.5) ? | |
| 'Correlation' : | |
| (val === 0) ? | |
| 'Low' : | |
| "High"; | |
| }); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .attr("transform", "rotate(90)") | |
| .call(yAxis) | |
| .selectAll("text") | |
| .attr("y", function() { return -d3.select(this).attr("y"); }) | |
| .attr("dy", "0em") | |
| .attr("transform", "rotate(180)"); | |
| svg.append("g") | |
| .attr("class", "quadrant-labels") | |
| .selectAll("text") | |
| .data([[0.25,0.25,"Lame"], | |
| [0.75,0.25,"Often"], | |
| [0.25,0.75,"Promising"], | |
| [0.75,0.75,"Superb"]]) | |
| .enter() | |
| .append("text") | |
| .each(function(d) { console.info(d); }) | |
| .attr("x", function(d) { return xScale(d[0]); }) | |
| .attr("y", function(d) { return yScale(d[1]); }) | |
| .attr("text-anchor", "middle") | |
| .attr("dy", ".35em") | |
| .text(function(d) { return d[2]; }); | |
| var circleSelection = svg.append("g") | |
| .selectAll("g") | |
| .data(dataset) | |
| .enter() | |
| .append("g") | |
| .attr("transform", function(d) { | |
| var x = -2*(d.x-0.5) * rScale(d.r) + xScale(d.x), | |
| y = 2*(d.y-0.5) * rScale(d.r) + yScale(d.y); | |
| return "translate("+[x, y]+")"; | |
| }) | |
| .attr("class", "circle"); | |
| circleSelection.append("circle") | |
| .attr("r", function(d) { return rScale(d.r); }) | |
| .attr("stroke", function(d) { return colorScale(d.x*d.y*d.r); }) | |
| .attr("fill", function(d) { return colorScale(d.x*d.y*d.r); }); | |
| circleSelection.append("text") | |
| .text(function(d) { return d.label; }) | |
| .attr("font-size", 10) | |
| .attr("text-anchor", "middle") | |
| .attr("font-size", function(d) { return Math.min(1.8*rScale(d.r), (1.8*rScale(d.r)) / this.getComputedTextLength() * 10); }) | |
| .attr("dy", ".35em"); |
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| <!doctype html> | |
| <html lang="ja"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>D3 Correlation Matrix</title> | |
| <style> | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: black; | |
| } | |
| .circle { | |
| opacity: 0.7; | |
| } | |
| .circle circle { | |
| fill-opacity: 0.7; | |
| stroke-width: 2; | |
| } | |
| .circle text { | |
| fill: #fff; | |
| fill-opacity: 0.8; | |
| } | |
| .tick text, | |
| .quadrant-labels text { | |
| font-size: 12px; | |
| } | |
| .tick line { | |
| opacity: 0.2; | |
| } | |
| .axis line, | |
| .axis path { | |
| stroke-linecap: square; | |
| } | |
| .quadrant-labels text { | |
| opacity: 0.4; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src="//d3js.org/d3.v3.js"></script> | |
| <script src="draw.js"></script> | |
| </body> | |
| </html> |
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