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authorMatti Picus <matti.picus@gmail.com>2018-08-21 19:14:58 +0300
committerGitHub <noreply@github.com>2018-08-21 19:14:58 +0300
commit18f2385b29bdd62701a1a82d7bf33fd87430a05e (patch)
treeea9b9a3f9bc7e940a8873bbd12678a0b6fd1e117 /numpy
parent0b5dfb0fb2a678652b45849ccf96982f89f010a8 (diff)
parent7750bea0a615a893b9ea3eeea5414e1ddcc41316 (diff)
downloadnumpy-18f2385b29bdd62701a1a82d7bf33fd87430a05e.tar.gz
Merge pull request #11755 from gyk/patch-1
MAINT: Fix typos in random.hypergeometric's notes
Diffstat (limited to 'numpy')
-rw-r--r--numpy/random/mtrand/mtrand.pyx8
1 files changed, 4 insertions, 4 deletions
diff --git a/numpy/random/mtrand/mtrand.pyx b/numpy/random/mtrand/mtrand.pyx
index 04d6c6615..5097ad88f 100644
--- a/numpy/random/mtrand/mtrand.pyx
+++ b/numpy/random/mtrand/mtrand.pyx
@@ -4198,12 +4198,12 @@ cdef class RandomState:
-----
The probability density for the Hypergeometric distribution is
- .. math:: P(x) = \\frac{\\binom{m}{n}\\binom{N-m}{n-x}}{\\binom{N}{n}},
+ .. math:: P(x) = \\frac{\\binom{g}{x}\\binom{b}{n-x}}{\\binom{g+b}{n}},
- where :math:`0 \\le x \\le m` and :math:`n+m-N \\le x \\le n`
+ where :math:`0 \\le x \\le n` and :math:`n-b \\le x \\le g`
- for P(x) the probability of x successes, n = ngood, m = nbad, and
- N = number of samples.
+ for P(x) the probability of x successes, g = ngood, b = nbad, and
+ n = number of samples.
Consider an urn with black and white marbles in it, ngood of them
black and nbad are white. If you draw nsample balls without