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Kirill Smelkov
cpython
Commits
003d069c
Commit
003d069c
authored
Aug 05, 2003
by
Raymond Hettinger
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Removed deprecated functions
parent
92e87b1a
Changes
2
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2 changed files
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2 additions
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61 deletions
+2
-61
Doc/lib/librandom.tex
Doc/lib/librandom.tex
+0
-12
Lib/random.py
Lib/random.py
+2
-49
No files found.
Doc/lib/librandom.tex
View file @
003d069c
...
...
@@ -168,18 +168,6 @@ these equations can be found in any statistics text.
Returned values range between 0 and 1.
\end{funcdesc}
\begin{funcdesc}
{
cunifvariate
}{
mean, arc
}
Circular uniform distribution.
\var
{
mean
}
is the mean angle, and
\var
{
arc
}
is the range of the distribution, centered around the mean
angle. Both values must be expressed in radians, and can range
between 0 and
\emph
{
pi
}
. Returned values range between
\code
{
\var
{
mean
}
-
\var
{
arc
}
/2
}
and
\code
{
\var
{
mean
}
+
\var
{
arc
}
/2
}
and are normalized to between 0 and
\emph
{
pi
}
.
\deprecated
{
2.3
}{
Instead, use
\code
{
(
\var
{
mean
}
+
\var
{
arc
}
*
(random.random() - 0.5))
\%
math.pi
}
.
}
\end{funcdesc}
\begin{funcdesc}
{
expovariate
}{
lambd
}
Exponential distribution.
\var
{
lambd
}
is 1.0 divided by the desired
mean. (The parameter would be called ``lambda'', but that is a
...
...
Lib/random.py
View file @
003d069c
...
...
@@ -45,8 +45,8 @@ from math import floor as _floor
__all__
=
[
"Random"
,
"seed"
,
"random"
,
"uniform"
,
"randint"
,
"choice"
,
"sample"
,
"randrange"
,
"shuffle"
,
"normalvariate"
,
"lognormvariate"
,
"
cunifvariate"
,
"
expovariate"
,
"vonmisesvariate"
,
"gammavariate"
,
"
stdgamma"
,
"
gauss"
,
"betavariate"
,
"paretovariate"
,
"weibullvariate"
,
"expovariate"
,
"vonmisesvariate"
,
"gammavariate"
,
"gauss"
,
"betavariate"
,
"paretovariate"
,
"weibullvariate"
,
"getstate"
,
"setstate"
,
"jumpahead"
]
NV_MAGICCONST
=
4
*
_exp
(
-
0.5
)
/
_sqrt
(
2.0
)
...
...
@@ -308,29 +308,6 @@ class Random(_random.Random):
"""
return
_exp
(
self
.
normalvariate
(
mu
,
sigma
))
## -------------------- circular uniform --------------------
def
cunifvariate
(
self
,
mean
,
arc
):
"""Circular uniform distribution.
mean is the mean angle, and arc is the range of the distribution,
centered around the mean angle. Both values must be expressed in
radians. Returned values range between mean - arc/2 and
mean + arc/2 and are normalized to between 0 and pi.
Deprecated in version 2.3. Use:
(mean + arc * (Random.random() - 0.5)) % Math.pi
"""
# mean: mean angle (in radians between 0 and pi)
# arc: range of distribution (in radians between 0 and pi)
import
warnings
warnings
.
warn
(
"The cunifvariate function is deprecated; Use (mean "
"+ arc * (Random.random() - 0.5)) % Math.pi instead"
,
DeprecationWarning
)
return
(
mean
+
arc
*
(
self
.
random
()
-
0.5
))
%
_pi
## -------------------- exponential distribution --------------------
def
expovariate
(
self
,
lambd
):
...
...
@@ -465,27 +442,6 @@ class Random(_random.Random):
break
return
x
*
beta
def
stdgamma
(
self
,
alpha
,
ainv
,
bbb
,
ccc
):
# This method was (and shall remain) undocumented.
# This method is deprecated
# for the following reasons:
# 1. Returns same as .gammavariate(alpha, 1.0)
# 2. Requires caller to provide 3 extra arguments
# that are functions of alpha anyway
# 3. Can't be used for alpha < 0.5
# ainv = sqrt(2 * alpha - 1)
# bbb = alpha - log(4)
# ccc = alpha + ainv
import
warnings
warnings
.
warn
(
"The stdgamma function is deprecated; "
"use gammavariate() instead"
,
DeprecationWarning
)
return
self
.
gammavariate
(
alpha
,
1.0
)
## -------------------- Gauss (faster alternative) --------------------
def
gauss
(
self
,
mu
,
sigma
):
...
...
@@ -755,7 +711,6 @@ def _test(N=2000):
_test_generator
(
N
,
'random()'
)
_test_generator
(
N
,
'normalvariate(0.0, 1.0)'
)
_test_generator
(
N
,
'lognormvariate(0.0, 1.0)'
)
_test_generator
(
N
,
'cunifvariate(0.0, 1.0)'
)
_test_generator
(
N
,
'vonmisesvariate(0.0, 1.0)'
)
_test_generator
(
N
,
'gammavariate(0.01, 1.0)'
)
_test_generator
(
N
,
'gammavariate(0.1, 1.0)'
)
...
...
@@ -786,11 +741,9 @@ sample = _inst.sample
shuffle
=
_inst
.
shuffle
normalvariate
=
_inst
.
normalvariate
lognormvariate
=
_inst
.
lognormvariate
cunifvariate
=
_inst
.
cunifvariate
expovariate
=
_inst
.
expovariate
vonmisesvariate
=
_inst
.
vonmisesvariate
gammavariate
=
_inst
.
gammavariate
stdgamma
=
_inst
.
stdgamma
gauss
=
_inst
.
gauss
betavariate
=
_inst
.
betavariate
paretovariate
=
_inst
.
paretovariate
...
...
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