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Bar chart with mouseover event
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| letter | frequency | |
|---|---|---|
| A | .08167 | |
| B | .01492 | |
| C | .02782 | |
| D | .04253 | |
| E | .12702 | |
| F | .02288 | |
| G | .02015 | |
| H | .06094 | |
| I | .06966 | |
| J | .00153 | |
| K | .00772 | |
| L | .04025 | |
| M | .02406 | |
| N | .06749 | |
| O | .07507 | |
| P | .01929 | |
| Q | .00095 | |
| R | .05987 | |
| S | .06327 | |
| T | .09056 | |
| U | .02758 | |
| V | .00978 | |
| W | .02360 | |
| X | .00150 | |
| Y | .01974 | |
| Z | .00074 |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Bar Chart with Manipulation</title> | |
| <style> | |
| .axis { | |
| font: 10px sans-serif; | |
| } | |
| .axis path, .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .y.axis path { | |
| display: none; | |
| } | |
| </style> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| </head> | |
| <body> | |
| </body> | |
| <script> | |
| var margin = { | |
| top: 20, | |
| right: 20, | |
| bottom: 30, | |
| left: 40 | |
| }, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var y = d3.scale.ordinal() | |
| .rangeRoundBands([0, height], .1); | |
| var x = d3.scale.linear() | |
| .range([0, width]); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom") | |
| .ticks(10, "%"); | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .orient("left"); | |
| var color = d3.scale.category20c(); | |
| 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 + ")"); | |
| d3.tsv("data.tsv", type, function(error, data) { | |
| x.domain([0, d3.max(data, function(d) { | |
| return d.frequency; | |
| })]); | |
| y.domain(data.map(function(d) { | |
| return d.letter; | |
| })); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis) | |
| .append("text") | |
| .attr("transform", "rotate(0)") | |
| .attr("y", 6) | |
| .attr("dy", "1.91em") | |
| .style("text-anchor", "start") | |
| .text("Frequency"); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis); | |
| var bars = svg.selectAll(".bar") | |
| .data(data) | |
| .enter() | |
| .append("rect") | |
| .attr("class", "bar"); | |
| bars.attr("y", function(d) { | |
| return y(d.letter); | |
| }) | |
| .attr("height", y.rangeBand()) | |
| .attr("x", 0)//function(d) { | |
| //return x(d.frequency); | |
| //}) | |
| .attr("width", function(d) { | |
| return x(d.frequency); | |
| }) | |
| .attr("fill", function(d, i) { | |
| return color(i); | |
| }) | |
| .attr("id", function(d, i) { | |
| return i; | |
| }) | |
| .on("mouseover", function() { | |
| d3.select(this) | |
| .attr("fill", "red"); | |
| }) | |
| .on("mouseout", function(d, i) { | |
| d3.select(this).attr("fill", function() { | |
| return "" + color(this.id) + ""; | |
| }); | |
| }); | |
| bars.append("title") | |
| .text(function(d) { | |
| return d.letter; | |
| }); | |
| }); | |
| function type(d) { | |
| d.frequency = +d.frequency; | |
| return d; | |
| } | |
| </script> | |
| </html> |
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