A box-and-whisker plot with axes. Based on Mike Bostock's implementation. Instead of using individual svg elements as in Mike's implementation, here all boxplots are rendered with in one root element. This makes it easy to add axes.
Further differences between the two implementations are:
forked from jensgrubert's block: D3.js Boxplot with Axes and Labels
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<meta charset="utf-8">
<style>
body {
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}
.box {
font: 10px sans-serif;
}
.box line,
.box rect,
.box circle {
fill: steelblue;
stroke: #000;
stroke-width: 1px;
}
.box .center {
stroke-dasharray: 3,3;
}
.box .outlier {
fill: none;
stroke: #000;
}
.axis {
font: 12px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.x.axis path {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
</style>
<body>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script src="d3.v3.min.js"></script>
<script src="box.js"></script>
<script>
var labels = true; // show the text labels beside individual boxplots?
var margin = {top: 30, right: 50, bottom: 70, left: 50};
var width = 800 - margin.left - margin.right;
var height = 400 - margin.top - margin.bottom;
var min = Infinity,
max = -Infinity;
// parse in the data
d3.csv("data.csv", function(error, csv) {
// using an array of arrays with
// data[n][2]
// where n = number of columns in the csv file
// data[i][0] = name of the ith column
// data[i][1] = array of values of ith column
var data = [];
data[0] = [];
data[1] = [];
// add more rows if your csv file has more columns
// add here the header of the csv file
data[0][0] = "animated";
data[1][0] = "static";
// add more rows if your csv file has more columns
data[0][1] = [];
data[1][1] = [];
csv.forEach(function(x) {
var v1 = Math.floor(x.animated),
v2 = Math.floor(x.static)
// add more variables if your csv file has more columns
var rowMax = Math.max(v1, v2);
var rowMin = Math.min(v1, v2);
data[0][1].push(v1);
data[1][1].push(v2);
// add more rows if your csv file has more columns
if (rowMax > max) max = rowMax;
if (rowMin < min) min = rowMin;
});
var chart = d3.box()
.whiskers(iqr(1.5))
.height(height)
.domain([min, max])
.showLabels(labels);
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.attr("class", "box")
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
// the x-axis
var x = d3.scale.ordinal()
.domain( data.map(function(d) { console.log(d); return d[0] } ) )
.rangeRoundBands([0 , width], 0.7, 0.3);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
// the y-axis
var y = d3.scale.linear()
.domain([min, max])
.range([height + margin.top, 0 + margin.top]);
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
// draw the boxplots
svg.selectAll(".box")
.data(data)
.enter().append("g")
.attr("transform", function(d) { return "translate(" + x(d[0]) + "," + margin.top + ")"; } )
.call(chart.width(x.rangeBand()));
// add a title
svg.append("text")
.attr("x", (width / 2))
.attr("y", 0 + (margin.top / 2))
.attr("text-anchor", "middle")
.style("font-size", "18px")
//.style("text-decoration", "underline")
.text("animated vs static distance results");
// draw y axis
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text") // and text1
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.style("font-size", "16px")
.text("distance");
// draw x axis
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + (height + margin.top + 10) + ")")
.call(xAxis)
.append("text") // text label for the x axis
.attr("x", (width / 2) )
.attr("y", 10 )
.attr("dy", ".71em")
.style("text-anchor", "middle")
.style("font-size", "16px")
.text("");
});
// Returns a function to compute the interquartile range.
function iqr(k) {
return function(d, i) {
var q1 = d.quartiles[0],
q3 = d.quartiles[2],
iqr = (q3 - q1) * k,
i = -1,
j = d.length;
while (d[++i] < q1 - iqr);
while (d[--j] > q3 + iqr);
return [i, j];
};
}
</script>
https://d3js.org/d3.v3.min.js