rngSetSeed-package

rngSetSeed

The function <code>setVectorSeed(vseed)</code> is provided, which allows to
 initialize the R base Mersenne-Twister random number generator using
 a numeric vector <code>vseed</code> of an arbitrary nonzero length. The
 transformation of <code>vseed</code> into the initial state of Mersenne-Twister
 is computed using AES (Advanced Encryption Standard). The precise
 algorithm is described in <code>generateInitialization</code>.
The directory "rngSetSeed/tests" contains tests, which<dl>
 <dt>(1)</dt>
<dd>compare the generated random numbers to stored precomuted ones,</dd> <dt>(2)</dt>
<dd>compare the initial states obtained using AES in C-level functions
 with initial states obtained using a (slow) implementation of AES
 in R-level functions included for test purposes.</dd> 
</dl>

A function setVectorSeed() is provided. Its argument
is a numeric vector of an arbitrary nonzero length, whose
components have integer values from [0, 2^32-1]. The input
vector is transformed using AES (Advanced Encryption Standard)
algorithm into an initial state of Mersenne-Twister random
number generator. The function provides a better alternative
to the R base function set.seed(), if the input vector is
a single integer. Initializing a stream of random numbers
with a vector is a convenient way to obtain several streams,
each of which is identified by several integer indices.

Petr Savicky

Seeding the Default RNG with a Numeric Vector

rngSetSeed-package function

The function <code>setVectorSeed(vseed)</code> is provided, which allows to
 initialize the R base Mersenne-Twister random number generator using
 a numeric vector <code>vseed</code> of an arbitrary nonzero length. The
 transformation of <code>vseed</code> into the initial state of Mersenne-Twister
 is computed using AES (Advanced Encryption Standard). The precise
 algorithm is described in <code>generateInitialization</code>.
The directory "rngSetSeed/tests" contains tests, which<dl>
 <dt>(1)</dt>
<dd>compare the generated random numbers to stored precomuted ones,</dd>

 <dt>(2)</dt>
<dd>compare the initial states obtained using AES in C-level functions
 with initial states obtained using a (slow) implementation of AES
 in R-level functions included for test purposes.</dd>

 
</dl>

rngSetSeed-package: Seeding the Default RNG with a Numeric Vector

Description

Arguments

See Also