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src/c/o/cogent-1.5.3/cogent/maths/stats/distribution.py   cogent(Download)
"""
from __future__ import division
from cogent.maths.stats.special import erf, erfc, igamc, igam, betai, log1p, \
    expm1, SQRTH, MACHEP, MAXNUM, PI, ndtri, incbi, igami, fix_rounding_error,\
    ln_binomial
            return 0.0
        z = 1.0 - 2.0 * p;
        z = incbi(0.5, 0.5*rk, abs(z))
        t = sqrt(rk*z/(1.0-z))
        if p < 0.5:
            p = 1.0 - p;
            rflg = 1
    z = incbi(0.5*rk, 0.5, 2.0*p)
 
    if MAXNUM * z < rk:
        p = incbet(dn, dk, 0.5)
        if p > 0.5:
            p = incbi(dk, dn, 1.0-y)
        else:
            p = 1.0 - incbi(dn, dk, y)

src/p/y/pycogent-HEAD/cogent/maths/stats/distribution.py   pycogent(Download)
"""
from __future__ import division
from cogent.maths.stats.special import erf, erfc, igamc, igam, betai, log1p, \
    expm1, SQRTH, MACHEP, MAXNUM, PI, ndtri, incbi, igami, fix_rounding_error,\
    ln_binomial
            return 0.0
        z = 1.0 - 2.0 * p;
        z = incbi(0.5, 0.5*rk, abs(z))
        t = sqrt(rk*z/(1.0-z))
        if p < 0.5:
            p = 1.0 - p;
            rflg = 1
    z = incbi(0.5*rk, 0.5, 2.0*p)
 
    if MAXNUM * z < rk:
        p = incbet(dn, dk, 0.5)
        if p > 0.5:
            p = incbi(dk, dn, 1.0-y)
        else:
            p = 1.0 - incbi(dn, dk, y)

src/c/o/cogent-1.5.3/tests/test_maths/test_stats/test_special.py   cogent(Download)
#!/usr/bin/env python
"""Unit tests for special functions used in statistics.
"""
from cogent.util.unit_test import TestCase, main
from cogent.maths.stats.special import permutations, permutations_exact, \
            for b in bb_range:
                for y in yy_range:
                    result = incbi(a,b,y)
                    e = exp[i]
                    self.assertFloatEqual(e, result)

src/p/y/pycogent-HEAD/tests/test_maths/test_stats/test_special.py   pycogent(Download)
#!/usr/bin/env python
"""Unit tests for special functions used in statistics.
"""
from cogent.util.unit_test import TestCase, main
from cogent.maths.stats.special import permutations, permutations_exact, \
            for b in bb_range:
                for y in yy_range:
                    result = incbi(a,b,y)
                    e = exp[i]
                    self.assertFloatEqual(e, result)