1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/*
FITSPNG -- test routine for empirical distribution function
Copyright (C) 2019 Filip Hroch, Masaryk University, Brno, CZ
Fitspng is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Fitspng is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fitspng. If not, see <http://www.gnu.org/licenses/>.
$ gcc -Wall -g -p -no-pie ecdf.c tecdf.c -lm
*/
#include <stdio.h>
#include <stdlib.h>
int ecdf(long, const float *, float *, float *);
float quantile(long, const float *, const float *, float);
int main()
{
float x[7] = {16.0, 12.0, 99.0, 95.0, 18.0, 87.0, 10.0 };
long ncdf;
float *xcdf = NULL, *ycdf = NULL;
xcdf = malloc(7*sizeof(float));
ycdf = malloc(7*sizeof(float));
ncdf = ecdf(7,x,xcdf,ycdf);
printf("%f (q(1/2) = 91)\n",quantile(ncdf,xcdf,ycdf,0.5));
for(long i = 0; i < ncdf; i++)
printf("%f %f\n",xcdf[i],ycdf[i]);
free(xcdf);
free(ycdf);
return(0);
}
|
