GRASS GIS 7 Programmer's Manual
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c_divr.c
Go to the documentation of this file.
1
#include <
grass/gis.h
>
2
#include <
grass/stats.h
>
3
4
void
c_divr
(
DCELL
* result,
DCELL
* values,
int
n,
const
void
*closure)
5
{
6
int
count
;
7
DCELL
prev;
8
int
i;
9
10
/* sort the array of values, then count differences */
11
12
n =
sort_cell
(values, n);
13
14
if
(n == 0) {
15
*result = 0;
16
return
;
17
}
18
19
count = 1;
20
prev = values[0];
21
22
for
(i = 0; i < n; i++)
23
if
(values[i] != prev) {
24
prev = values[i];
25
count++;
26
}
27
28
*result = (
DCELL
) count;
29
}
sort_cell
int sort_cell(DCELL *, int)
Definition:
sort_cell.c:28
c_divr
void c_divr(DCELL *result, DCELL *values, int n, const void *closure)
Definition:
c_divr.c:4
DCELL
double DCELL
Definition:
gis.h:603
count
int count
stats.h
gis.h
lib
stats
c_divr.c
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