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<!-- based on http://bl.ocks.org/mbostock/3885304 -->
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script>
var create_chart = function(data, c_width){
$("#chart").html("");
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = c_width - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(10, "");
var svg = d3.select("#chart").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 + ")");
x.domain(data.map(function(d) { return d.label; }));
y.domain([0, d3.max(data, function(d) { return d.count; })]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
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("Counts");
svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
.attr("x", function(d) { return x(d.label); })
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d.count); })
.attr("height", function(d) { return height - y(d.count); })
.append("title")
.text(function(d) {
return d.count;});
};
</script>
<script>
var model = {{chart_data|safe}};
var c_width = {{chart_width|safe}};
var max = {{chart_max|safe}};
create_chart(model, c_width);
</script>