#include "vnl_sample.h"#include <vnl/vnl_math.h>#include <vcl_cmath.h>#include <vxl_config.h>#include <vcl_ctime.h>Go to the source code of this file.
Functions | |
| void | vnl_sample_reseed () |
| re-seed the random number generator. | |
| void | vnl_sample_reseed (int seed) |
| re-seed the random number generator given a seed. | |
| double | vnl_sample_uniform (double a, double b) |
| return a random number uniformly drawn on [a, b). | |
| void | vnl_sample_normal_2 (double *x, double *y) |
| two independent samples from a standard normal distribution. | |
| double | vnl_sample_normal (double mean, double sigma) |
| Normal distribution with given mean and standard deviation. | |
| int | vnl_sample_bernoulli (double q) |
| Bernoulli distribution ("coin toss"). | |
| int | vnl_sample_binomial (int n, double q) |
| Return random k, where P(X = k) = [kth term in binomial expansion of (q + (1-q))^n]. | |
| int vnl_sample_bernoulli | ( | double | q | ) |
Bernoulli distribution ("coin toss").
The returned value will be 0 (with probability q) or 1 (with probability 1-q). For a "fair" coin toss, use q=0.5. When q does not lie between 0 and 1, the value -1 is returned.
Definition at line 72 of file vnl_sample.cxx.
| int vnl_sample_binomial | ( | int | n, |
| double | q | ||
| ) |
Return random k, where P(X = k) = [kth term in binomial expansion of (q + (1-q))^n].
The returned value will lie between 0 and n (but will be -1 when input is nonsense).
Definition at line 83 of file vnl_sample.cxx.
| double vnl_sample_normal | ( | double | mean, |
| double | sigma | ||
| ) |
Normal distribution with given mean and standard deviation.
Definition at line 64 of file vnl_sample.cxx.
| void vnl_sample_normal_2 | ( | double * | x, |
| double * | y | ||
| ) |
two independent samples from a standard normal distribution.
Definition at line 53 of file vnl_sample.cxx.
| void vnl_sample_reseed | ( | ) |
re-seed the random number generator.
Definition at line 22 of file vnl_sample.cxx.
| void vnl_sample_reseed | ( | int | seed | ) |
re-seed the random number generator given a seed.
Definition at line 31 of file vnl_sample.cxx.
| double vnl_sample_uniform | ( | double | a, |
| double | b | ||
| ) |
return a random number uniformly drawn on [a, b).
Definition at line 40 of file vnl_sample.cxx.
1.7.5.1