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Code Issues Releases Wiki Activity

generate json object from histogram

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This commit is contained in:
Steffen Vogel 2016-10-22 20:38:31 -04:00
parent d2347102f8
commit bee825ae30
2 changed files with 58 additions and 7 deletions
include/villas
hist.h
lib
hist.c

12
include/villas/hist.h
View file

@ -14,6 +14,10 @@
#include "config.h"
#ifdef WITH_JANSSON
#include <jansson.h>
#endif
#define HIST_HEIGHT (LOG_WIDTH - 55)
#define HIST_SEQ 17
@ -75,6 +79,12 @@ void hist_plot(struct hist *h);
char * hist_dump(struct hist *h);
/** Prints Matlab struct containing all infos to file. */
void hist_matlab(struct hist *h, FILE *f);
int hist_dump_matlab(struct hist *h, FILE *f);
#ifdef WITH_JANSSON
int hist_dump_json(struct hist *h, FILE *f);
json_t * hist_json(struct hist *h);
#endif
#endif /* _HIST_H_ */

53
lib/hist.c
View file

@ -157,19 +157,60 @@ char * hist_dump(struct hist *h)
return buf;
}
void hist_matlab(struct hist *h, FILE *f)
#ifdef WITH_JANSSON
json_t * hist_json(struct hist *h)
{
json_t *b = json_array();
for (int i = 0; i < h->length; i++)
json_array_append(b, json_integer(h->data[i]));
return json_pack("{ s: f, s: f, s: i, s: i, s: i, s: f, s: f, s: f, s: f, s: f, s: o }",
"low", h->low,
"high", h->high,
"total", h->total,
"higher", h->higher,
"lower", h->lower,
"highest", h->highest,
"lowest", h->lowest,
"mean", hist_mean(h),
"variance", hist_var(h),
"stddev", hist_stddev(h),
"buckets", b
);
}
int hist_dump_json(struct hist *h, FILE *f)
{
json_t *j = hist_json(h);
int ret = json_dumpf(j, f, 0);
json_decref(j);
return ret;
}
#endif /* WITH_JANNSON */
int hist_dump_matlab(struct hist *h, FILE *f)
{
char *buf = hist_dump(h);
fprintf(f, "%lu = struct( ", time(NULL));
fprintf(f, "'min', %f, 'max', %f, ", h->low, h->high);
fprintf(f, "'total', %u, higher', %u, 'lower', %u, ", h->total, h->higher, h->lower);
fprintf(f, "'highest', %f, 'lowest', %f, ", h->highest, h->lowest);
fprintf(f, "'low', %f, ", h->low);
fprintf(f, "'high', %f, ", h->high);
fprintf(f, "'total', %u, ", h->total);
fprintf(f, "'higher', %u, ", h->higher);
fprintf(f, "'lower', %u, ", h->lower);
fprintf(f, "'highest', %f, ", h->highest);
fprintf(f, "'lowest', %f, ", h->lowest);
fprintf(f, "'mean', %f, ", hist_mean(h));
fprintf(f, "'var', %f, ", hist_var(h));
fprintf(f, "'variance', %f, ", hist_var(h));
fprintf(f, "'stddev', %f, ", hist_stddev(h));
fprintf(f, "'hist', %s ", buf);
fprintf(f, "'buckets', %s ", buf);
fprintf(f, "),\n");
free(buf);
return 0;
}