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dft_tools/doc/reference/python/random/random.rst

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Cythonize random generators A trivial cythonized version of the c++ random_generator class. Useful to get the names of the generators from the python. new file: pytriqs/random/* new file: doc/reference/python/random/*
2013-09-13 17:49:28 +02:00
.. index:: Random number generator
Change implementation of random_generator & python wrapper. - Use a new buffered_function to replace the complicated generator code from ALPS. - Clean the implementation of the random_generator - update the documentation - update to the new python wrapper (could not be done with the previous version, because of lack of move constructor).
2014-05-29 21:35:00 +02:00
.. module:: pytriqs.random_generator
Cythonize random generators A trivial cythonized version of the c++ random_generator class. Useful to get the names of the generators from the python. new file: pytriqs/random/* new file: doc/reference/python/random/*
2013-09-13 17:49:28 +02:00
.. _random_generator:
Random generator class
======================
Change implementation of random_generator & python wrapper. - Use a new buffered_function to replace the complicated generator code from ALPS. - Clean the implementation of the random_generator - update the documentation - update to the new python wrapper (could not be done with the previous version, because of lack of move constructor).
2014-05-29 21:35:00 +02:00
TRIQS exposes to python the random number generators used in C++,
in the module ``RandomGenerator``.
The generators are the boost random generators.
Cythonize random generators A trivial cythonized version of the c++ random_generator class. Useful to get the names of the generators from the python. new file: pytriqs/random/* new file: doc/reference/python/random/*
2013-09-13 17:49:28 +02:00
Usage
-----
Change implementation of random_generator & python wrapper. - Use a new buffered_function to replace the complicated generator code from ALPS. - Clean the implementation of the random_generator - update the documentation - update to the new python wrapper (could not be done with the previous version, because of lack of move constructor).
2014-05-29 21:35:00 +02:00
The generator is constructed from a name (the name of the boost generator) and a seed::
Cythonize random generators A trivial cythonized version of the c++ random_generator class. Useful to get the names of the generators from the python. new file: pytriqs/random/* new file: doc/reference/python/random/*
2013-09-13 17:49:28 +02:00
Change implementation of random_generator & python wrapper. - Use a new buffered_function to replace the complicated generator code from ALPS. - Clean the implementation of the random_generator - update the documentation - update to the new python wrapper (could not be done with the previous version, because of lack of move constructor).
2014-05-29 21:35:00 +02:00
from pytriqs.random_generator import *
Cythonize random generators A trivial cythonized version of the c++ random_generator class. Useful to get the names of the generators from the python. new file: pytriqs/random/* new file: doc/reference/python/random/*
2013-09-13 17:49:28 +02:00
r = RandomGenerator("mt19937", 237849)
Change implementation of random_generator & python wrapper. - Use a new buffered_function to replace the complicated generator code from ALPS. - Clean the implementation of the random_generator - update the documentation - update to the new python wrapper (could not be done with the previous version, because of lack of move constructor).
2014-05-29 21:35:00 +02:00
A list of available random generators is obtained with::
Cythonize random generators A trivial cythonized version of the c++ random_generator class. Useful to get the names of the generators from the python. new file: pytriqs/random/* new file: doc/reference/python/random/*
2013-09-13 17:49:28 +02:00
Change implementation of random_generator & python wrapper. - Use a new buffered_function to replace the complicated generator code from ALPS. - Clean the implementation of the random_generator - update the documentation - update to the new python wrapper (could not be done with the previous version, because of lack of move constructor).
2014-05-29 21:35:00 +02:00
print random_generator_names_list()
Cythonize random generators A trivial cythonized version of the c++ random_generator class. Useful to get the names of the generators from the python. new file: pytriqs/random/* new file: doc/reference/python/random/*
2013-09-13 17:49:28 +02:00
Change implementation of random_generator & python wrapper. - Use a new buffered_function to replace the complicated generator code from ALPS. - Clean the implementation of the random_generator - update the documentation - update to the new python wrapper (could not be done with the previous version, because of lack of move constructor).
2014-05-29 21:35:00 +02:00
Then you can either generate float number on the interval :math:`[0,1[`
simply by calling the generator, or integer numbers in the inverval :math:`[0,N-1]` by calling
it with `N` ::
Cythonize random generators A trivial cythonized version of the c++ random_generator class. Useful to get the names of the generators from the python. new file: pytriqs/random/* new file: doc/reference/python/random/*
2013-09-13 17:49:28 +02:00
Change implementation of random_generator & python wrapper. - Use a new buffered_function to replace the complicated generator code from ALPS. - Clean the implementation of the random_generator - update the documentation - update to the new python wrapper (could not be done with the previous version, because of lack of move constructor).
2014-05-29 21:35:00 +02:00
print r()
print r(10)
Cythonize random generators A trivial cythonized version of the c++ random_generator class. Useful to get the names of the generators from the python. new file: pytriqs/random/* new file: doc/reference/python/random/*
2013-09-13 17:49:28 +02:00
Example
-------
Here's a simple example showing how to use the generator.
.. plot:: reference/python/random/random.py
:include-source:
:scale: 70
Complete reference
------------------
Change implementation of random_generator & python wrapper. - Use a new buffered_function to replace the complicated generator code from ALPS. - Clean the implementation of the random_generator - update the documentation - update to the new python wrapper (could not be done with the previous version, because of lack of move constructor).
2014-05-29 21:35:00 +02:00
.. autoclass:: pytriqs.random_generator.RandomGenerator
Cythonize random generators A trivial cythonized version of the c++ random_generator class. Useful to get the names of the generators from the python. new file: pytriqs/random/* new file: doc/reference/python/random/*
2013-09-13 17:49:28 +02:00
:members:
Change implementation of random_generator & python wrapper. - Use a new buffered_function to replace the complicated generator code from ALPS. - Clean the implementation of the random_generator - update the documentation - update to the new python wrapper (could not be done with the previous version, because of lack of move constructor).
2014-05-29 21:35:00 +02:00
.. autofunction:: pytriqs.random_generator.random_generator_names_list
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