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1.6465621229906502
The equivalent commands from NumPy produce identical output.
>>> from numpy.random import RandomState
>>> rs = RandomState(12345)
>>> x = rs.standard_normal(10)
>>> rs.shuffle(x)
>>> x[0]
0.09290787674371767
>>> rs.standard_exponential()
1.6465621229906502
"""
__atttributes = sorted(set(dir(_LegacyGenerator) +
dir(RandomGenerator))
.difference(_HIDDEN_ATTRIBUTES))
def __init__(self, brng=None):
if brng is None:
brng = MT19937()
super(LegacyGenerator, self).__init__(brng)
self.__legacy = _LegacyGenerator(brng)
def __getattribute__(self, name):
if name in _HIDDEN_ATTRIBUTES:
raise AttributeError('No attribute {0}'.format(name))
if name in _LEGACY_ATTRIBUTES:
return self.__legacy.__getattribute__(name)
return object.__getattribute__(self, name)
def __dir__(self):
def __getattribute__(self, name):
if name in _LEGACY_ATTRIBUTES:
return object.__getattribute__(_LegacyGenerator, name)
return object.__getattribute__(RandomGenerator, name)
return meta(name, bases, d)
@classmethod
def __prepare__(cls, name, this_bases):
return meta.__prepare__(name, bases)
return type.__new__(metaclass, 'temporary_class', (), {})
class LegacyGeneratorType(type):
def __getattribute__(self, name):
if name in _LEGACY_ATTRIBUTES:
return object.__getattribute__(_LegacyGenerator, name)
return object.__getattribute__(RandomGenerator, name)
class LegacyGenerator(with_metaclass(LegacyGeneratorType, RandomGenerator)):
"""
LegacyGenerator(brng=None)
Container providing legacy generators.
``LegacyGenerator`` exposes a number of methods for generating random
numbers for a set of distributions where the method used to produce random
samples has changed. Three core generators have changed: normal,
exponential and gamma. These have been replaced by faster Ziggurat-based
methods in ``RadnomGenerator``. ``LegacyGenerator`` retains the slower
methods to produce samples from these distributions as well as from
distributions that depend on these such as the Chi-square, power or
Weibull.
**No Compatibility Guarantee**