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forked from romsson's block: simple bar chat
forked from romsson's block: simple bar chat from dataset
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November 8, 2017 14:22
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simple bar chat updates
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| license: mit |
We can make this file beautiful and searchable if this error is corrected: No commas found in this CSV file in line 0.
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| name;value | |
| A;22 | |
| B;32 | |
| C;21 | |
| D;23 | |
| E;10 | |
| F;22 | |
| G;11 | |
| H;19 | |
| I;30 | |
| J;50 |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| rect { | |
| fill: none; | |
| stroke: black; | |
| stroke-width: 1px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", 960) | |
| .attr("height", 500); | |
| // No domain! (yet) | |
| var x = d3.scaleLinear().range([0, 500]); | |
| var y = d3.scaleLinear().range([0, 100]) | |
| var g = svg.append("g").attr("transform", "translate(100, 0)"); | |
| d3.text('dataset.csv', function(error, raw){ | |
| var dsv = d3.dsvFormat(';') | |
| var data = dsv.parse(raw); | |
| // Domain after data have been loaded! | |
| x.domain([0, data.length]); | |
| // Accessor for value | |
| y.domain([0, d3.max(data, function(d) { return d.value; })]); | |
| g.selectAll("text").data(data).enter().append("text") | |
| .text(function(d) { return d.name; }) | |
| .attr("y", 200) | |
| .attr("x", function(d, i) { return x(i) + 20; }) | |
| .style("font-size", 12) | |
| .style("font-family", "monospace"); | |
| g.selectAll("rect").data(data).enter().append("rect") | |
| .attr("x", function(d, i) { return x(i); }) | |
| .attr("y", function(d) { return 170 - y(d.value); }) | |
| .attr("height", function(d) { return y(d.value); }) | |
| .attr("width", 500 / data.length); | |
| setInterval(function(d) { | |
| data.forEach(function(d) { | |
| d.value = Math.random(); | |
| }); | |
| y.domain([0, d3.max(data, function(d) { return d.value; })]); | |
| g.selectAll("rect").data(data).transition() | |
| .attr("y", function(d) { return 170 - y(d.value); }) | |
| .attr("height", function(d) { return y(d.value); }) | |
| }, 500); | |
| }); | |
| </script> | |
| </body> |
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