Generates pseudo-random samples with a Gaussian distribution in the direct mode.
Syntax
IppStatus ippsRandGauss_Direct_16s(Ipp16s* pDst, int len, Ipp16s mean, Ipp16s stdev, unsigned int* pSeed);
IppStatus ippsRandGauss_Direct_32f(Ipp32f* pDst, int len, Ipp32f mean, Ipp32f stdev, unsigned int* pSeed);
IppStatus ippsRandGauss_Direct_64f(Ipp64f* pDst, int len, Ipp64f mean, Ipp64f stdev, unsigned int* pSeed);
Parameters
pDst |
Pointer to the array which stores the samples. |
pSeed |
Pointer to the seed value used by the pseudo-random number generation algorithm. |
len |
Number of samples to be computed. |
mean |
Mean of the Gaussian distribution. |
stdev |
Standard deviation of the Gaussian distribution. |
Description
The function ippsRandGauss_Direct is declared in the ipps.h file. This function generates len pseudo-random samples with a Gaussian distribution, and stores them in the array pDst.This function does not require to initialize the generator state structure in advance. All parameters of the pseudo-random number generator are set directly in the function.
The example below demonstrates how to use the function ippsRandGauss_Direct.
Return Values
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when the pDst or pSeed pointer is NULL. |
ippStsSizeErr |
Indicates an error when len is less than or equal to 0. |
Using the Function ippsaRandGauss_Direct
void func_gauss_direct()
{
Ipp16s* pDst;
int len = 512;
Ipp16s mean = 0;
Ipp16s stdev = 2047;
unsigned int Seed = 0;
IppStatus status;
status = ippsRandGauss_Direct_16s(pDst, len, mean, stdev, &Seed);
if(ippStsNoErr != status)
printf("IPP Error: %s",ippGetStatusString(status));
}
result:
