src/web/api/queries/stddev/stddev.c
// SPDX-License-Identifier: GPL-3.0-or-later
#include "stddev.h"
// ----------------------------------------------------------------------------
// stddev
/*
* Mean = average
*
NETDATA_DOUBLE grouping_flush_mean(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr) {
struct grouping_stddev *g = (struct grouping_stddev *)r->grouping.grouping_data;
NETDATA_DOUBLE value;
if(unlikely(!g->count)) {
value = 0.0;
*rrdr_value_options_ptr |= RRDR_VALUE_EMPTY;
}
else {
value = mean(g);
if(!isnormal(value)) {
value = 0.0;
*rrdr_value_options_ptr |= RRDR_VALUE_EMPTY;
}
}
grouping_reset_stddev(r);
return value;
}
*/
/*
* It is not advised to use this version of variance directly
*
NETDATA_DOUBLE grouping_flush_variance(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr) {
struct grouping_stddev *g = (struct grouping_stddev *)r->grouping.grouping_data;
NETDATA_DOUBLE value;
if(unlikely(!g->count)) {
value = 0.0;
*rrdr_value_options_ptr |= RRDR_VALUE_EMPTY;
}
else {
value = variance(g);
if(!isnormal(value)) {
value = 0.0;
*rrdr_value_options_ptr |= RRDR_VALUE_EMPTY;
}
}
grouping_reset_stddev(r);
return value;
}
*/