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May 24, 2019 04:14
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license: mit |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<body> | |
<div id="div1"></div> | |
<div id="div2"></div> | |
</body> | |
<script src="https://d3js.org/d3.v4.js"></script> | |
<script> | |
var parseDate = d3.timeParse("%Y-%m-%d"); | |
function type2(d, i, columns) { | |
d.date = parseDate(d.date); | |
return d; | |
} | |
function type(d, i, columns) { | |
d.date = parseDate(d.date); | |
for (var i = 1, n = columns.length; i < n; ++i) d[columns[i]] = d[columns[i]] / 100; | |
return d; | |
} | |
function drawGraph(error, data, selector, width, height) { | |
console.log(data); | |
var svg = d3.select(selector).append("svg") | |
.attr("width", width) | |
.attr("height", height), | |
margin = {top: 20, right: 20, bottom: 30, left: 50}, | |
width = svg.attr("width") - margin.left - margin.right, | |
height = svg.attr("height") - margin.top - margin.bottom; | |
var x = d3.scaleTime().range([0, width]), | |
y = d3.scaleLinear().range([height, 0]), | |
z = d3.scaleOrdinal(d3.schemeCategory10); | |
var stack = d3.stack(); | |
var area = d3.area() | |
.x(function (d, i) { | |
return x(d.data.date); | |
}) | |
.y0(function (d) { | |
return y(d[0]); | |
}) | |
.y1(function (d) { | |
return y(d[1]); | |
}); | |
var g = svg.append("g") | |
.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
var keys = data.columns.slice(1); | |
x.domain(d3.extent(data, function (d) { | |
return d.date; | |
})); | |
z.domain(keys); | |
stack.keys(keys); | |
console.log(stack(data)) | |
var layer = g.selectAll(".layer") | |
.data(stack(data)) | |
.enter().append("g") | |
.attr("class", "layer"); | |
layer.append("path") | |
.attr("class", "area") | |
.style("fill", function (d) { | |
return z(d.key); | |
}) | |
.attr("d", area); | |
layer.filter(function (d) { | |
return d[d.length - 1][1] - d[d.length - 1][0] > 0.01; | |
}) | |
.append("text") | |
.attr("x", width - 6) | |
.attr("y", function (d) { | |
return y((d[d.length - 1][0] + d[d.length - 1][1]) / 2); | |
}) | |
.attr("dy", ".35em") | |
.style("font", "10px sans-serif") | |
.style("text-anchor", "end") | |
.text(function (d) { | |
return d.key; | |
}); | |
g.append("g") | |
.attr("class", "axis axis--x") | |
.attr("transform", "translate(0," + height + ")") | |
.call(d3.axisBottom(x)); | |
g.append("g") | |
.attr("class", "axis axis--y") | |
.call(d3.axisLeft(y).ticks(10, "%")); | |
} | |
d3.csv("market_shares.csv", type2, function (error, data) { | |
let stackedByDate = {} | |
let drugSet = new Set(); | |
let defaultDrugMarketShareProp = {}; | |
let newData = [] | |
data.forEach(function (item, index) { | |
drugSet.add(item.drug); | |
stackedByDate[item.date] = {}; | |
}); | |
let drugNames = [...drugSet]; | |
drugNames.forEach(function (item, index) { | |
defaultDrugMarketShareProp[item] = 0; | |
}); | |
data.forEach(function (item, index) { | |
stackedByDate[item.date] = Object.assign({}, defaultDrugMarketShareProp); | |
}); | |
data.forEach(function (item, index) { | |
stackedByDate[item.date][item.drug] = item.market_share; | |
}); | |
Object.keys(stackedByDate).forEach(function (key) { | |
hash = {} | |
hash['date'] = key; | |
Object.keys(stackedByDate[key]).forEach(function (innerKey) { | |
hash[innerKey] = stackedByDate[key][innerKey] | |
}); | |
newData.push(hash); | |
}); | |
newData.columns = drugNames; | |
newData.columns.unshift('date'); | |
drawGraph(error, newData, "#div2", 960, 500); | |
}); | |
</script> |
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