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| author | tylov <[email protected]> | 2023-07-20 15:09:10 +0200 |
|---|---|---|
| committer | tylov <[email protected]> | 2023-07-20 15:12:29 +0200 |
| commit | 900295256d825fc323149cd223c49787f32a3696 (patch) | |
| tree | 6c79cf4209e3975bb6865e2940b9cb56ea469c73 /misc/examples/gauss2.c | |
| parent | 224a04f7fa7549ed94d2a1415eb25829e39a7cca (diff) | |
| download | STC-modified-900295256d825fc323149cd223c49787f32a3696.tar.gz STC-modified-900295256d825fc323149cd223c49787f32a3696.zip | |
Moved examples to sub-directories. Added cotask1.c cotask2.c examples.
Diffstat (limited to 'misc/examples/gauss2.c')
| -rw-r--r-- | misc/examples/gauss2.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/misc/examples/gauss2.c b/misc/examples/gauss2.c deleted file mode 100644 index 1ab8ade5..00000000 --- a/misc/examples/gauss2.c +++ /dev/null @@ -1,45 +0,0 @@ -#include <stdio.h> -#include <time.h> - -#define i_implement -#include <stc/cstr.h> -#include <stc/crand.h> - -// Declare int -> int sorted map. -#define i_key int -#define i_val int -#include <stc/csmap.h> - -int main(void) -{ - enum {N = 5000000}; - uint64_t seed = (uint64_t)time(NULL); - crand_t rng = crand_init(seed); - const double Mean = round(crand_f64(&rng)*98.0 - 49.0), StdDev = crand_f64(&rng)*10.0 + 1.0, Scale = 74.0; - - printf("Demo of gaussian / normal distribution of %d random samples\n", N); - printf("Mean %f, StdDev %f\n", Mean, StdDev); - - // Setup random engine with normal distribution. - crand_norm_t dist = crand_norm_init(Mean, StdDev); - - // Create and init histogram map with defered destruct - csmap_int hist = {0}; - cstr bar = {0}; - - c_forrange (N) { - int index = (int)round(crand_norm(&rng, &dist)); - csmap_int_insert(&hist, index, 0).ref->second += 1; - } - - // Print the gaussian bar chart - c_forpair (index, count, csmap_int, hist) { - int n = (int)round((double)*_.count * StdDev * Scale * 2.5 / (double)N); - if (n > 0) { - cstr_resize(&bar, n, '*'); - printf("%4d %s\n", *_.index, cstr_str(&bar)); - } - } - cstr_drop(&bar); - csmap_int_drop(&hist); -} |
