[svn:parrot] r44497 - trunk/t/dynoplibs
Austin_Hastings at svn.parrot.org
Austin_Hastings at svn.parrot.org
Fri Feb 26 16:24:18 UTC 2010
Author: Austin_Hastings
Date: Fri Feb 26 16:24:17 2010
New Revision: 44497
URL: https://trac.parrot.org/parrot/changeset/44497
Log:
See TT#1479
Test random range generator for randomness.
Added:
trunk/t/dynoplibs/random-range.t
Added: trunk/t/dynoplibs/random-range.t
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ trunk/t/dynoplibs/random-range.t Fri Feb 26 16:24:17 2010 (r44497)
@@ -0,0 +1,365 @@
+#! parrot
+# Copyright (C) 2010, Parrot Foundation.
+# $Id: $
+
+=head1 NAME
+
+t/dynoplibs/random-range.t - Tests random range behavior of math_ops lib.
+
+=head1 SYNOPSIS
+
+ % prove t/dynoblibs/random-range.t
+
+=head1 DESCRIPTION
+
+Tests random range using chi-square
+
+=cut
+
+.loadlib 'math_ops'
+.sub add_chi2_entry
+ .param pmc table
+ .param int nu
+ .param num p_10
+ .param num p_05
+ .param num p_025
+ .param num p_01
+ .param num p_001
+
+ $P0 = new ['FixedFloatArray']
+ $P0 = 5
+
+ $P0[0] = p_10
+ $P0[1] = p_05
+ $P0[2] = p_025
+ $P0[3] = p_01
+ $P0[4] = p_001
+
+ table[nu] = $P0
+.end
+
+.sub compute_chi_square
+ .param pmc histogram
+ .param int num_samples
+
+ .local int possible_values
+ possible_values = elements histogram
+
+ .local num expected
+ expected = num_samples
+ expected /= possible_values
+
+ .local num K
+ K = 0.0
+
+ $I0 = possible_values
+ if $I0 == 0 goto end
+chi2_loop:
+ dec $I0
+
+ # Compute: (O - E)^2 / E
+ $N0 = histogram[$I0]
+ $N0 -= expected
+ $N0 *= $N0
+ $N0 /= expected
+
+ K += $N0
+
+ unless $I0 == 0 goto chi2_loop
+
+ #~ print "Chi-squared K is: "
+ #~ say K
+end:
+ .return (K)
+.end
+
+.sub make_chi2_table
+ # This info comes from http://itl.nist.gov/div898/handbook/eda/section3/eda3674.htm
+ # Obtained 26 Feb 2010 -- Austin
+
+ # Probability of exceeding the critical value
+ # nu 0.10 0.05 0.025 0.01 0.001
+
+ .local pmc table
+ table = new ['ResizablePMCArray']
+
+ add_chi2_entry(table, 1, 2.706, 3.841, 5.024, 6.635, 10.828)
+ add_chi2_entry(table, 2, 4.605, 5.991, 7.378, 9.210, 13.816)
+ add_chi2_entry(table, 3, 6.251, 7.815, 9.348, 11.345, 16.266)
+ add_chi2_entry(table, 4, 7.779, 9.488, 11.143, 13.277, 18.467)
+ add_chi2_entry(table, 5, 9.236, 11.070, 12.833, 15.086, 20.515)
+ add_chi2_entry(table, 6, 10.645, 12.592, 14.449, 16.812, 22.458)
+ add_chi2_entry(table, 7, 12.017, 14.067, 16.013, 18.475, 24.322)
+ add_chi2_entry(table, 8, 13.362, 15.507, 17.535, 20.090, 26.125)
+ add_chi2_entry(table, 9, 14.684, 16.919, 19.023, 21.666, 27.877)
+ add_chi2_entry(table, 10, 15.987, 18.307, 20.483, 23.209, 29.588)
+ add_chi2_entry(table, 11, 17.275, 19.675, 21.920, 24.725, 31.264)
+ add_chi2_entry(table, 12, 18.549, 21.026, 23.337, 26.217, 32.910)
+ add_chi2_entry(table, 13, 19.812, 22.362, 24.736, 27.688, 34.528)
+ add_chi2_entry(table, 14, 21.064, 23.685, 26.119, 29.141, 36.123)
+ add_chi2_entry(table, 15, 22.307, 24.996, 27.488, 30.578, 37.697)
+ add_chi2_entry(table, 16, 23.542, 26.296, 28.845, 32.000, 39.252)
+ add_chi2_entry(table, 17, 24.769, 27.587, 30.191, 33.409, 40.790)
+ add_chi2_entry(table, 18, 25.989, 28.869, 31.526, 34.805, 42.312)
+ add_chi2_entry(table, 19, 27.204, 30.144, 32.852, 36.191, 43.820)
+ add_chi2_entry(table, 20, 28.412, 31.410, 34.170, 37.566, 45.315)
+ add_chi2_entry(table, 21, 29.615, 32.671, 35.479, 38.932, 46.797)
+ add_chi2_entry(table, 22, 30.813, 33.924, 36.781, 40.289, 48.268)
+ add_chi2_entry(table, 23, 32.007, 35.172, 38.076, 41.638, 49.728)
+ add_chi2_entry(table, 24, 33.196, 36.415, 39.364, 42.980, 51.179)
+ add_chi2_entry(table, 25, 34.382, 37.652, 40.646, 44.314, 52.620)
+ add_chi2_entry(table, 26, 35.563, 38.885, 41.923, 45.642, 54.052)
+ add_chi2_entry(table, 27, 36.741, 40.113, 43.195, 46.963, 55.476)
+ add_chi2_entry(table, 28, 37.916, 41.337, 44.461, 48.278, 56.892)
+ add_chi2_entry(table, 29, 39.087, 42.557, 45.722, 49.588, 58.301)
+ add_chi2_entry(table, 30, 40.256, 43.773, 46.979, 50.892, 59.703)
+ add_chi2_entry(table, 31, 41.422, 44.985, 48.232, 52.191, 61.098)
+ add_chi2_entry(table, 32, 42.585, 46.194, 49.480, 53.486, 62.487)
+ add_chi2_entry(table, 33, 43.745, 47.400, 50.725, 54.776, 63.870)
+ add_chi2_entry(table, 34, 44.903, 48.602, 51.966, 56.061, 65.247)
+ add_chi2_entry(table, 35, 46.059, 49.802, 53.203, 57.342, 66.619)
+ add_chi2_entry(table, 36, 47.212, 50.998, 54.437, 58.619, 67.985)
+ add_chi2_entry(table, 37, 48.363, 52.192, 55.668, 59.893, 69.347)
+ add_chi2_entry(table, 38, 49.513, 53.384, 56.896, 61.162, 70.703)
+ add_chi2_entry(table, 39, 50.660, 54.572, 58.120, 62.428, 72.055)
+ add_chi2_entry(table, 40, 51.805, 55.758, 59.342, 63.691, 73.402)
+ add_chi2_entry(table, 41, 52.949, 56.942, 60.561, 64.950, 74.745)
+ add_chi2_entry(table, 42, 54.090, 58.124, 61.777, 66.206, 76.084)
+ add_chi2_entry(table, 43, 55.230, 59.304, 62.990, 67.459, 77.419)
+ add_chi2_entry(table, 44, 56.369, 60.481, 64.201, 68.710, 78.750)
+ add_chi2_entry(table, 45, 57.505, 61.656, 65.410, 69.957, 80.077)
+ add_chi2_entry(table, 46, 58.641, 62.830, 66.617, 71.201, 81.400)
+ add_chi2_entry(table, 47, 59.774, 64.001, 67.821, 72.443, 82.720)
+ add_chi2_entry(table, 48, 60.907, 65.171, 69.023, 73.683, 84.037)
+ add_chi2_entry(table, 49, 62.038, 66.339, 70.222, 74.919, 85.351)
+ add_chi2_entry(table, 50, 63.167, 67.505, 71.420, 76.154, 86.661)
+ add_chi2_entry(table, 51, 64.295, 68.669, 72.616, 77.386, 87.968)
+ add_chi2_entry(table, 52, 65.422, 69.832, 73.810, 78.616, 89.272)
+ add_chi2_entry(table, 53, 66.548, 70.993, 75.002, 79.843, 90.573)
+ add_chi2_entry(table, 54, 67.673, 72.153, 76.192, 81.069, 91.872)
+ add_chi2_entry(table, 55, 68.796, 73.311, 77.380, 82.292, 93.168)
+ add_chi2_entry(table, 56, 69.919, 74.468, 78.567, 83.513, 94.461)
+ add_chi2_entry(table, 57, 71.040, 75.624, 79.752, 84.733, 95.751)
+ add_chi2_entry(table, 58, 72.160, 76.778, 80.936, 85.950, 97.039)
+ add_chi2_entry(table, 59, 73.279, 77.931, 82.117, 87.166, 98.324)
+ add_chi2_entry(table, 60, 74.397, 79.082, 83.298, 88.379, 99.607)
+ add_chi2_entry(table, 61, 75.514, 80.232, 84.476, 89.591, 100.888)
+ add_chi2_entry(table, 62, 76.630, 81.381, 85.654, 90.802, 102.166)
+ add_chi2_entry(table, 63, 77.745, 82.529, 86.830, 92.010, 103.442)
+ add_chi2_entry(table, 64, 78.860, 83.675, 88.004, 93.217, 104.716)
+ add_chi2_entry(table, 65, 79.973, 84.821, 89.177, 94.422, 105.988)
+ add_chi2_entry(table, 66, 81.085, 85.965, 90.349, 95.626, 107.258)
+ add_chi2_entry(table, 67, 82.197, 87.108, 91.519, 96.828, 108.526)
+ add_chi2_entry(table, 68, 83.308, 88.250, 92.689, 98.028, 109.791)
+ add_chi2_entry(table, 69, 84.418, 89.391, 93.856, 99.228, 111.055)
+ add_chi2_entry(table, 70, 85.527, 90.531, 95.023, 100.425, 112.317)
+ add_chi2_entry(table, 71, 86.635, 91.670, 96.189, 101.621, 113.577)
+ add_chi2_entry(table, 72, 87.743, 92.808, 97.353, 102.816, 114.835)
+ add_chi2_entry(table, 73, 88.850, 93.945, 98.516, 104.010, 116.092)
+ add_chi2_entry(table, 74, 89.956, 95.081, 99.678, 105.202, 117.346)
+ add_chi2_entry(table, 75, 91.061, 96.217, 100.839, 106.393, 118.599)
+ add_chi2_entry(table, 76, 92.166, 97.351, 101.999, 107.583, 119.850)
+ add_chi2_entry(table, 77, 93.270, 98.484, 103.158, 108.771, 121.100)
+ add_chi2_entry(table, 78, 94.374, 99.617, 104.316, 109.958, 122.348)
+ add_chi2_entry(table, 79, 95.476, 100.749, 105.473, 111.144, 123.594)
+ add_chi2_entry(table, 80, 96.578, 101.879, 106.629, 112.329, 124.839)
+ add_chi2_entry(table, 81, 97.680, 103.010, 107.783, 113.512, 126.083)
+ add_chi2_entry(table, 82, 98.780, 104.139, 108.937, 114.695, 127.324)
+ add_chi2_entry(table, 83, 99.880, 105.267, 110.090, 115.876, 128.565)
+ add_chi2_entry(table, 84, 100.980, 106.395, 111.242, 117.057, 129.804)
+ add_chi2_entry(table, 85, 102.079, 107.522, 112.393, 118.236, 131.041)
+ add_chi2_entry(table, 86, 103.177, 108.648, 113.544, 119.414, 132.277)
+ add_chi2_entry(table, 87, 104.275, 109.773, 114.693, 120.591, 133.512)
+ add_chi2_entry(table, 88, 105.372, 110.898, 115.841, 121.767, 134.746)
+ add_chi2_entry(table, 89, 106.469, 112.022, 116.989, 122.942, 135.978)
+ add_chi2_entry(table, 90, 107.565, 113.145, 118.136, 124.116, 137.208)
+ add_chi2_entry(table, 91, 108.661, 114.268, 119.282, 125.289, 138.438)
+ add_chi2_entry(table, 92, 109.756, 115.390, 120.427, 126.462, 139.666)
+ add_chi2_entry(table, 93, 110.850, 116.511, 121.571, 127.633, 140.893)
+ add_chi2_entry(table, 94, 111.944, 117.632, 122.715, 128.803, 142.119)
+ add_chi2_entry(table, 95, 113.038, 118.752, 123.858, 129.973, 143.344)
+ add_chi2_entry(table, 96, 114.131, 119.871, 125.000, 131.141, 144.567)
+ add_chi2_entry(table, 97, 115.223, 120.990, 126.141, 132.309, 145.789)
+ add_chi2_entry(table, 98, 116.315, 122.108, 127.282, 133.476, 147.010)
+ add_chi2_entry(table, 99, 117.407, 123.225, 128.422, 134.642, 148.230)
+ add_chi2_entry(table, 100, 118.498, 124.342, 129.561, 135.807, 149.449)
+
+ .return (table)
+.end
+
+.sub make_random_hist
+ .param int min
+ .param int max
+ .param int num_samples
+
+ if max > min goto get_pv
+ die "Max must be > min"
+
+get_pv:
+ .local int possible_values
+ possible_values = max - min
+ inc possible_values
+
+ .local pmc histogram
+ histogram = new ['FixedIntegerArray']
+ histogram = possible_values
+
+ $I0 = max - min
+init:
+ histogram[$I0] = 0
+ dec $I0
+ unless $I0 < 0 goto init
+
+ $I0 = num_samples
+ if $I0 == 0 goto loop_done
+loop:
+ .local int random
+ random = rand min, max
+
+ random -= min
+ $I1 = histogram[random]
+ inc $I1
+ histogram[random] = $I1
+
+ dec $I0
+ unless $I0 <= 0 goto loop
+loop_done:
+
+ .return (histogram)
+.end
+
+.sub print_histogram
+ .param pmc histogram
+ .param int num_samples
+
+ .local num expected
+ expected = num_samples
+ $I0 = elements histogram
+ expected /= $I0
+
+ .local pmc sprintf_args
+ sprintf_args = new ['FixedPMCArray']
+ sprintf_args = 2
+
+ $I0 = elements histogram
+hist_loop:
+ dec $I0
+
+ $N0 = histogram[$I0]
+ $N0 /= expected
+ $P0 = box $N0
+ sprintf_args[0] = $P0
+
+ $N1 = $N0 * 40
+ $I1 = $N1
+ $I1 -= 6 # width of printed $N0, plus space
+ if $I1 > 0 goto make_stars
+ $I1 = 0
+make_stars:
+
+ $S0 = repeat '*', $I1
+ $P0 = box $S0
+ sprintf_args[1] = $P0
+
+ $S0 = sprintf "%5.3f %s", sprintf_args
+ say $S0
+
+ unless $I0 <= 0 goto hist_loop
+
+end:
+.end
+
+.sub test_histogram
+ .param pmc histogram
+ .param num K
+ .param pmc table
+
+ .local int degrees_of_freedom
+ $I0 = elements histogram
+ degrees_of_freedom = $I0 - 1
+
+ .local pmc sprintf_args
+ sprintf_args = new ['ResizablePMCArray']
+ $P0 = box degrees_of_freedom
+ push sprintf_args, $P0
+
+ $I0 = exists table[degrees_of_freedom]
+ if $I0 goto get_data
+
+ $S0 = sprintf "Don't have chi2 data for %d degrees of freedom", sprintf_args
+ skip(1, $S0)
+ goto end
+
+get_data:
+
+ .local pmc chi2_data
+ chi2_data = table[degrees_of_freedom]
+ $N0 = chi2_data[0]
+
+ $I0 = islt K, $N0
+
+ $P0 = box $N0
+ unshift sprintf_args, $P0
+ $P0= box K
+ unshift sprintf_args, $P0
+
+ $S0 = sprintf "K (%5.3f) should be less than limit (%5.3f) for %d degrees of freedom", sprintf_args
+ todo($I0, $S0)
+
+end:
+ .return ($I0)
+.end
+
+.sub test_random_range
+ .param int range
+ .param int times
+ .param pmc table
+
+ .local int num_samples
+ num_samples = range * times
+
+ .local int min, max
+ min = 10
+ max = min + range
+
+ .local pmc histogram
+ histogram = make_random_hist(min, max, num_samples)
+
+ .local num K
+ K = compute_chi_square(histogram, num_samples)
+
+ $I0 = test_histogram(histogram, K, table)
+
+ #if $I0 goto end
+ #print_histogram(histogram, num_samples)
+end:
+.end
+
+.sub main :main
+ .include 'test_more.pir'
+
+ .const int TIMES = 10000
+
+ .local int num_tries
+ num_tries = 101
+
+ plan(num_tries)
+
+ $S0 = "Running tests expecting #TIMES# hits per bucket"
+ $P0 = split '#', $S0
+ $S0 = TIMES
+ $P0[1] = $S0
+ $S0 = join '', $P0
+ diag($S0)
+
+ .local pmc table
+ table = make_chi2_table()
+
+ $I0 = 0
+loop:
+ inc $I0
+ test_random_range($I0, TIMES, table)
+ if $I0 < num_tries goto loop
+
+.end
+
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