JJSierraM/squiggle.c
1
0
Fork 0
forked from personal/squiggle.c
Code Issues Pull Requests Packages Projects Releases Wiki Activity

new pattern: define sampler and then sample from it

Browse Source
This commit is contained in:
NunoSempere 2024-01-29 18:20:55 +01:00
parent 6199e43ae4
commit 279fb12dee
1 changed files with 16 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
examples/core/01_one_sample/example.c
View File

@ -3,33 +3,13 @@
#include <stdlib.h> #include <stdlib.h>
// Estimate functions // Estimate functions
double sample_0(uint64_t* seed)
{
UNUSED(seed);
return 0;
}
double sample_1(uint64_t* seed) double sample_model(uint64_t* seed){
{
UNUSED(seed);
return 1;
}
double sample_few(uint64_t* seed) double sample_0(uint64_t* seed) { UNUSED(seed); return 0; }
{ double sample_1(uint64_t* seed) { UNUSED(seed); return 1; }
return sample_to(1, 3, seed); double sample_few(uint64_t* seed) { return sample_to(1, 3, seed); }
} double sample_many(uint64_t* seed) { return sample_to(2, 10, seed); }
double sample_many(uint64_t* seed)
{
return sample_to(2, 10, seed);
}
int main()
{
// set randomness seed
uint64_t* seed = malloc(sizeof(uint64_t));
*seed = 1000; // xorshift can't start with 0
double p_a = 0.8; double p_a = 0.8;
double p_b = 0.5; double p_b = 0.5;
@ -38,8 +18,17 @@ int main()
int n_dists = 4; int n_dists = 4;
double weights[] = { 1 - p_c, p_c / 2, p_c / 4, p_c / 4 }; double weights[] = { 1 - p_c, p_c / 2, p_c / 4, p_c / 4 };
double (*samplers[])(uint64_t*) = { sample_0, sample_1, sample_few, sample_many }; double (*samplers[])(uint64_t*) = { sample_0, sample_1, sample_few, sample_many };
double result = sample_mixture(samplers, weights, n_dists, seed);
double result_one = sample_mixture(samplers, weights, n_dists, seed); return result;
printf("result_one: %f\n", result_one); }
int main()
{
// set randomness seed
uint64_t* seed = malloc(sizeof(uint64_t));
*seed = 1000; // xorshift can't start with 0
printf("result_one: %f\n", sample_model(seed));
free(seed); free(seed);
} }