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statistics: add enough entries for date axis

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We must add one more entries than there are days, because the
entries describe the values between histograms.

The root cause of the problem here is that a histogram axis
is misused for a continuous day-axis.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2022-10-19 22:17:56 +02:00 • committed by Dirk Hohndel
parent 48659c3f7d
commit 56c91a46b6
2 changed files with 6 additions and 1 deletions
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4
stats/statsaxis.cpp
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@ -623,7 +623,9 @@ static std::vector<HistogramAxisEntry> timeRangeToBins(double from, double to)
QString format = day_before_month ? QStringLiteral("%1%2%3")
: QStringLiteral("%3%2%1");
QString sep = QString(separator);
for (auto act = day_from; act < day_to; inc(act)) {
// Attention: In a histogramm axis, we must add one more entries than
// histogram bins. The entries are the values *between* the histograms.
for (auto act = day_from; act <= day_to; inc(act)) {
double val = date_to_double(act[0], act[1], act[2]);
if (act[1] == 0) {
res.push_back({ QString::number(act[0]), val, true });