Developer Reference for Intel® oneAPI Math Kernel Library for C
vRngNegBinomial
Generates random numbers with negative binomial distribution.
Syntax
status = viRngNegbinomial ( method , stream , n , r , a , p );
Include Files
mkl.h
Input Parameters
Name |
Type |
Description |
|---|---|---|
method |
const MKL_INT |
Generation method. The specific value is: VSL_RNG_METHOD_NEGBINOMIAL_NBAR See brief description of the NBAR method in Table “Values of |
stream |
VSLStreamStatePtr |
pointer to the stream state structure |
n |
const MKL_INT |
Number of random values to be generated |
a |
const double |
The first distribution parameter a |
p |
const double |
The second distribution parameter p |
Output Parameters
Name |
Type |
Description |
|---|---|---|
r |
int* |
Vector of n random values with negative binomial distribution. |
Description
viRngNegbinomial The vRngNegBinomial function generates random numbers with negative binomial distribution and distribution parameters a and p , where p , a ∈ R ; 0 < p < 1; a > 0.
If the first distribution parameter a ∈ N , this distribution is the same as Pascal distribution. If a ∈ N , the distribution can be interpreted as the expected time of a -th success in a sequence of Bernoulli trials, when the probability of success is p .
The probability distribution is given by:
The cumulative distribution function is as follows:
Product and Performance Information Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex . Notice revision #20201201
Return Values
- VSL_ERROR_OK , VSL_STATUS_OK
-
Indicates no error, execution is successful.
- VSL_ERROR_NULL_PTR
-
stream is a NULL pointer.
- VSL_RNG_ERROR_BAD_STREAM
-
stream is not a valid random stream.
- VSL_RNG_ERROR_BAD_UPDATE
-
Callback function for an abstract BRNG returns an invalid number of updated entries in a buffer, that is, < 0 or > nmax .
- VSL_RNG_ERROR_NO_NUMBERS
-
Callback function for an abstract BRNG returns 0 as the number of updated entries in a buffer.
- VSL_RNG_ERROR_QRNG_PERIOD_ELAPSED
-
Period of the generator has been exceeded.
- VSL_RNG_ERROR_ARS5_NOT_SUPPORTED
-
ARS-5 random number generator is not supported on the CPU running the application.