cta_util_statistics.h File Reference

Utility for calculating a realization of a standard normal distribution. More...

#include "cta_system.h"

Go to the source code of this file.

Functions
CTAEXPORT void	CTA_rand_seed (int seed)
	Initialize the random generator.
CTAEXPORT int	CTA_rand_u (double *x)
	Get an uniform random number from the interval [0 1].
CTAEXPORT int	CTA_rand_n (double *x)
	Get a random number from a normal distribution whit mean 0 and standard deviation 1.

---

Detailed Description

Utility for calculating a realization of a standard normal distribution.

Note:

This is just a set of utility routines it does not define any COSTA component

Definition in file cta_util_statistics.h.

---

Function Documentation

CTAEXPORT int CTA_rand_n

(

double *

x

)

Get a random number from a normal distribution whit mean 0 and standard deviation 1.

Parameters:

x

O receives the random number

Returns:

error status: CTA_OK if successful

CTAEXPORT void CTA_rand_seed

(

int

seed

)

Initialize the random generator.

Note:

only initialize the random generator once.

Parameters:

seed

I some positive initial seed

CTAEXPORT int CTA_rand_u

(

double *

x

)

Get an uniform random number from the interval [0 1].

Parameters:

x

O receives the random number

Returns:

error status: CTA_OK if successful