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D3byEX 5.5: Linear Scale (Adapted to D3.js v4)
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| <!DOCTYPE html> | |
| <html> | |
| <meta charset=utf-8> | |
| <head> | |
| <meta name="description" content="D3.js v4, .scaleLinear" /> | |
| </head> | |
| <body> | |
| <script src="http://d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var url = "https://gist.githubusercontent.com/d3byex/e5ce6526ba2208014379/raw/8fefb14cc18f0440dc00248f23cbf6aec80dcc13/walking_dead_s5.csv"; | |
| d3.csv(url, function (error, data) { | |
| var mappedAndConverted = data.map(function (d) { | |
| return { | |
| Episode: +d.Episode, // unary oper converts str to int | |
| USViewers: +d.USViewers, | |
| Title: d.Title | |
| }; | |
| }); | |
| var viewership = mappedAndConverted.map(function (d) { return d.USViewers; }); | |
| var minViewership = d3.min(viewership); | |
| var maxViewership = d3.max(viewership); | |
| var minBarHeight = 100, maxBarHeight = 400; | |
| var yScale = d3.scaleLinear() // v4 | |
| .domain([minViewership, maxViewership]) | |
| .range([minBarHeight, maxBarHeight]); | |
| // view console | |
| console.log(minViewership + " -> " + yScale(minViewership)); // 100 | |
| console.log(maxViewership + " -> " + yScale(maxViewership)); // 400 | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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