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function wpd3_4451_0 () {var margin = {top: 20, right: 20, bottom: 120, left: 40},
width = 700 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x0 = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var x1 = d3.scale.ordinal();
var y = d3.scale.linear()
.range([height, 0]);
var color = d3.scale.ordinal()
.range(["#eeeeee", "#404040", "#93cddd", "#215968", "#d7e4bd", "#4f6228"]);
var xAxis = d3.svg.axis()
.scale(x0)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.tickFormat(d3.format(".2s"));
var svg = d3.select(".wpd3-4451-0").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 + ")");
d3.tsv("http://jon.breitenbucher.net/wp-content/uploads/2014/04/historical.tsv", function(error, data) {
var allocationNames = d3.keys(data[0]).filter(function(key) { return key !== "Category"; });
data.forEach(function(d) {
d.allocations = allocationNames.map(function(name) { return {name: name, value: +d[name]}; });
});
x0.domain(data.map(function(d) { return d.Category; }));
x1.domain(allocationNames).rangeRoundBands([0, x0.rangeBand()]);
y.domain([0, d3.max(data, function(d) { return d3.max(d.allocations, function(d) { return d.value; }); })]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis)
.selectAll("text")
.style("text-anchor", "end")
.attr("dx", "-.8em")
.attr("dy", ".15em")
.attr("transform", function(d) {
return "rotate(-65)"
});
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.text("$");
var state = svg.selectAll(".state")
.data(data)
.enter().append("g")
.attr("class", "g")
.attr("transform", function(d) { return "translate(" + x0(d.Category) + ",0)"; });
state.selectAll("rect")
.data(function(d) { return d.allocations; })
.enter().append("rect")
.attr("width", x1.rangeBand())
.attr("x", function(d) { return x1(d.name); })
.attr("y", function(d) { return y(d.value); })
.attr("height", function(d) { return height - y(d.value); })
.style("fill", function(d) { return color(d.name); });
var legend = svg.selectAll(".legend")
.data(allocationNames.slice().reverse())
.enter().append("g")
.attr("class", "legend")
.attr("transform", function(d, i) { return "translate(20," + i * 20 + ")"; });
legend.append("text")
.attr("x", width - margin.right - 275)
.attr("y", 9)
.attr("dy", ".35em")
.style("text-anchor", "start")
.text(function(d) { return d; });
legend.append("rect")
.attr("x", width - margin.right - 300 )
.attr("width", 18)
.attr("height", 18)
.style("fill", color);
});}; wpd3_4451_0();This is the data on Campus Council allocations of the student activity fee for the past three years. I wanted to see how easy/hard it would be to replicate what I had done in Excel using D3. It turned out to be quite a challenge. I’m not sure I would have gotten this without the examples. The library seems very useful and worth some further exploration.