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102 lines
3.3 KiB
102 lines
3.3 KiB
dojo.provide("dojox.math.tests.stats"); |
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dojo.require("dojox.math.stats"); |
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(function(){ |
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var epsilon = 1e-6; |
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eq = function(t, a, b){ |
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t.t(!isNaN(a) && ! isNaN(b)); |
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var delta = Math.abs((a - b) / (a + b)); |
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t.t(isNaN(delta) || delta < epsilon); |
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}, |
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a1 = [1, 2, 1], |
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a2 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]; |
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a3 = [0, 5, 4, 5, 8, 20, 21, 20, 20, 8, 9, 15, 12, 11, 18, 7, 19, 13, 13, 4]; |
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tests.register("dojox.math.stats.tests", [ |
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function sd(t){ |
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t.assertEqual(6.335613624582861, dojox.math.stats.sd(a3)); |
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}, |
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function variance(t){ |
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t.assertEqual(40.139999999999986, dojox.math.stats.variance(a3)); |
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}, |
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function mean(t){ |
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t.assertEqual(11.6, dojox.math.stats.mean(a3)); |
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}, |
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function min(t){ |
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t.assertEqual(0, dojox.math.stats.min(a3)); |
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}, |
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function max(t){ |
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t.assertEqual(21, dojox.math.stats.max(a3)); |
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}, |
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function median(t){ |
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t.assertEqual(12, dojox.math.stats.median(a3)); |
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}, |
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function mode(t){ |
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t.assertEqual(20, dojox.math.stats.mode(a3)); |
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}, |
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function sum(t){ |
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t.assertEqual(232, dojox.math.stats.sum(a3)); |
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} |
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]); |
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var points = [ |
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{x:1, y:42}, {x:1, y:7}, {x:2, y:17}, {x:4, y:41}, |
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{x:5, y:60}, {x:7, y:19}, {x:7, y:16}, {x:8, y:15}, |
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{x:10, y:29}, {x:11, y:1}, {x:12, y:10}, {x:13, y:22}, |
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{x:13, y:16}, {x:14, y:29}, {x:20, y:37}, {x:21, y:10}, |
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{x:21, y:60}, {x:22, y:4}, {x:22, y:33}, {x:25, y:52}, |
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{x:25, y:32}, {x:25, y:18}, {x:27, y:46}, {x:28, y:2}, |
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{x:28, y:56}, {x:29, y:12}, {x:32, y:53}, {x:32, y:14}, |
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{x:36, y:18}, {x:37, y:23}, {x:38, y:18}, {x:45, y:37}, |
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{x:48, y:43}, {x:50, y:9}, {x:53, y:48}, {x:55, y:60}, |
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{x:55, y:28}, {x:57, y:19}, {x:58, y:48}, {x:58, y:29} |
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]; |
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tests.register("dojox.math.stats.tests.bestFit", [ |
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function bf(t){ |
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var result = dojox.math.stats.bestFit(points); |
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console.log(result); |
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t.assertEqual(0.208, Math.round(result.slope*1000)/1000); |
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t.assertEqual(22.829, Math.round(result.intercept*1000)/1000); |
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t.assertEqual(0.045, Math.round(result.r2*1000)/1000); |
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t.assertEqual(0.212, Math.round(result.r*1000)/1000); |
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} |
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]); |
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tests.register("dojox.math.stats.tests.forecast", [ |
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function _42(t){ |
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t.assertEqual(31.580951899655346, dojox.math.stats.forecast(points, 42)); |
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}, |
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function _54(t){ |
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t.assertEqual(34.08152295859065, dojox.math.stats.forecast(points, 54)); |
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}, |
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function _201(t){ |
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t.assertEqual(64.71351843054812, dojox.math.stats.forecast(points, 201)); |
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} |
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]); |
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tests.register("dojox.math.stats.tests.approx", [ |
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function approx1(t){ eq(t, dojox.math.stats.approxLin(a1, 0), 1); }, |
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function approx2(t){ eq(t, dojox.math.stats.approxLin(a1, 0.5), 2); }, |
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function approx3(t){ eq(t, dojox.math.stats.approxLin(a1, 1), 1); }, |
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function approx4(t){ eq(t, dojox.math.stats.approxLin(a1, 0.25), 1.5); }, |
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function approx5(t){ eq(t, dojox.math.stats.approxLin(a1, 0.75), 1.5); }, |
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function approx6(t){ eq(t, dojox.math.stats.approxLin(a1, 0.1), 1.2); }, |
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function summary1(t){ |
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var s = dojox.math.stats.summary(a1); |
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eq(t, s.min, 1); |
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eq(t, s.p10, 1); |
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eq(t, s.p25, 1); |
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eq(t, s.med, 1); |
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eq(t, s.p75, 1.5); |
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eq(t, s.p90, 1.8); |
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eq(t, s.max, 2); |
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}, |
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function summary2(t){ |
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var s = dojox.math.stats.summary(a2, true); |
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eq(t, s.min, 0); |
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eq(t, s.p10, 2); |
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eq(t, s.p25, 5); |
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eq(t, s.med, 10); |
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eq(t, s.p75, 15); |
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eq(t, s.p90, 18); |
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eq(t, s.max, 20); |
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} |
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]); |
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})();
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