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forked from anonymous's block: nate central limit theorem demo
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August 27, 2016 20:07
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nate central limit theorem demo
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| license: mit |
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| <!DOCTYPE html> | |
| <head> | |
| <!-- trying to demo what they did here with Java: http://onlinestatbook.com/2/sampling_distributions/clt_demo.html Except without Java --> | |
| <meta charset="utf-8"><!-- Load c3.css --> | |
| <link href="http://c3js.org/css/c3-b03125fa.css" rel="stylesheet" type="text/css"> | |
| <!-- Load d3.js and c3.js --> | |
| <script src="https://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://c3js.org/js/c3.min-4c5bef8f.js"></script> | |
| <script src="https://d3js.org/d3-random.v1.min.js"></script> | |
| <script src="https://d3js.org/d3-array.v1.min.js"></script> | |
| </head> | |
| <body> | |
| <div id="chart"><div> | |
| <script> | |
| function getRandomSubarray(arr, size) { | |
| var shuffled = arr.slice(0), i = arr.length, min = i - size, temp, index; | |
| while (i-- > min) { | |
| index = Math.floor((i + 1) * Math.random()); | |
| temp = shuffled[index]; | |
| shuffled[index] = shuffled[i]; | |
| shuffled[i] = temp; | |
| } | |
| return shuffled.slice(min); | |
| } | |
| var t = 90; | |
| var r = 100000; | |
| var mu = 0; | |
| var sigma = 0.5; | |
| var pop=d3.range(r).map(d3.randomLogNormal(mu, sigma)); | |
| var pop_dist = d3.histogram().thresholds(40)(pop).map(function(d){return d.length}); | |
| var s_dist = [2, 1, 9, 31, 64, 173, 243, 339, 483, 608, 700, 774, 774, 754, 757, 735, 621, 566, 447, 403, 289, 247, 234, 166, 141, 104, 95, 65, 38, 36, 23, 27, 25, 11, 7, 4, 7, 7, 6, 3, 1, 2, 0, 2, 0, 0, 0, 1]; | |
| var s_dist_2 = [1, 0, 3, 10, 19, 23, 32, 35, 56, 68, 89, 63, 75, 70, 74, 63, 77, 47, 50, 28, 24, 26, 14, 9, 10, 6, 9, 5, 3, 5, 1, 1, 0, 0, 0, 1, 3]; | |
| var chart = c3.generate({ | |
| data: { | |
| columns: [ | |
| ['data1'].concat(pop_dist), | |
| //['data2', 130, 100, 140, 200, 150, 50] | |
| ], | |
| type: 'bar' | |
| }, | |
| bar: { | |
| width: { | |
| ratio: 0.90 // this makes bar width 50% of length between ticks | |
| } | |
| // or | |
| //width: 100 // this makes bar width 100px | |
| } | |
| }); | |
| </script> | |
| </body> |
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