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set initial values of hist class members in constructor; add a TODO case in put() function in for warmup==0

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This commit is contained in:
Sonja Happ 2019-09-16 15:57:10 +02:00 • committed by Steffen Vogel
parent 09ea196f1e
commit 5f9009da13
1 changed files with 17 additions and 4 deletions
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21
common/lib/hist.cpp
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@ -22,6 +22,7 @@
#include <cmath>
#include <algorithm>
#include <cfloat> // for DBL_MAX
#include <villas/utils.hpp>
#include <villas/hist.hpp>
@ -33,9 +34,17 @@ using namespace villas::utils;
namespace villas {
Hist::Hist(int buckets, Hist::cnt_t wu) :
warmup(wu),
data(buckets)
{ }
warmup(wu)
{
for ( int i = 0; i<buckets; i++){
data.push_back(0);
}
total=0;
highest=0;
lowest=DBL_MAX;
higher=0;
lower=0;
}
void Hist::put(double value)
{
@ -51,11 +60,15 @@ void Hist::put(double value)
if (total < warmup) {
/* We are still in warmup phase... Waiting for more samples... */
}
else if (data.size() && total == warmup) {
else if (data.size() && total == warmup && warmup != 0) {
low = getMean() - 3 * getStddev();
high = getMean() + 3 * getStddev();
resolution = (high - low) / data.size();
}
else if (data.size() && (total == warmup) && (warmup == 0)){
// there is no warmup phase
// TODO resolution = ?
}
else {
idx_t idx = std::round((value - low) / resolution);