reformat squiggle.c, remake examples.

This commit is contained in:
NunoSempere 2023-07-16 21:08:05 +02:00
parent 8f69dd1e58
commit 68e7730f24
6 changed files with 34 additions and 33 deletions

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@ -4,7 +4,7 @@
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
// #include <sys/types.h>
#include <time.h>
#define EXIT_ON_ERROR 0

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@ -7,8 +7,7 @@ const float PI = M_PI;// 3.14159265358979323846;
// Pseudo Random number generator
uint32_t xorshift32
(uint32_t* seed)
uint32_t xorshift32(uint32_t* seed)
{
// Algorithm "xor" from p. 4 of Marsaglia, "Xorshift RNGs"
// See <https://stackoverflow.com/questions/53886131/how-does-xorshift32-works>
@ -24,7 +23,8 @@ uint32_t xorshift32
// Distribution & sampling functions
float rand_0_to_1(uint32_t* seed){
float rand_0_to_1(uint32_t* seed)
{
return ((float)xorshift32(seed)) / ((float)UINT32_MAX);
}
@ -33,7 +33,7 @@ float rand_float(float max, uint32_t* seed)
return rand_0_to_1(seed) * max;
}
float ur_normal(uint32_t* seed)
float unit_normal(uint32_t* seed)
{
float u1 = rand_0_to_1(seed);
float u2 = rand_0_to_1(seed);
@ -48,7 +48,7 @@ float random_uniform(float from, float to, uint32_t* seed)
float random_normal(float mean, float sigma, uint32_t* seed)
{
return (mean + sigma * ur_normal(seed));
return (mean + sigma * unit_normal(seed));
}
float random_lognormal(float logmean, float logsigma, uint32_t* seed)
@ -106,7 +106,8 @@ float mixture(float (*samplers[])(uint32_t*), float* weights, int n_dists, uint3
break;
}
}
if(result_set_flag == 0) result = samplers[n_dists-1](seed);
if (result_set_flag == 0)
result = samplers[n_dists - 1](seed);
free(cumsummed_normalized_weights);
return result;