squiggle.c/examples/more/05_burn_10kg_fat/example.c
NunoSempere 4113c87e4d continue with big refactor
- delete cdf functions from header file
- delete docs
- rework examples so as to not use sample_90_ci function
- add a few items to README
2024-02-01 20:54:52 +01:00

44 lines
1.3 KiB
C

#include "../../../squiggle.h"
#include "../../../squiggle_more.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
double sample_minutes_per_day_jumping_rope_needed_to_burn_10kg(uint64_t* seed)
{
double kcal_jumping_rope_minute = sample_to(15, 20, seed);
double kcal_jumping_rope_hour = kcal_jumping_rope_minute * 60;
double kcal_in_kg_of_fat = 7700;
double num_kg_of_fat_to_lose = 10;
double hours_jumping_rope_needed = kcal_in_kg_of_fat * num_kg_of_fat_to_lose / kcal_jumping_rope_hour;
double days_until_end_of_year = 152; // as of 2023-08-01
double hours_per_day = hours_jumping_rope_needed / days_until_end_of_year;
double minutes_per_day = hours_per_day * 60;
return minutes_per_day;
}
int main()
{
// set randomness seed
uint64_t* seed = malloc(sizeof(uint64_t));
*seed = 1000; // xorshift can't start with 0
int n = 1000 * 1000;
double* xs = malloc(sizeof(double) * (size_t)n);
for (int i = 0; i < n; i++) {
xs[i] = sample_minutes_per_day_jumping_rope_needed_to_burn_10kg(seed);
}
printf("## How many minutes per day do I have to jump rope to lose 10kg of fat by the end of the year?\n");
printf("\n# Stats\n");
array_print_stats(xs, n);
printf("\n# Histogram\n");
array_print_histogram(xs, n, 23);
free(seed);
}