statistics: add a sort mode for categorical bar charts

This was a user request: Sort bar charts by height of the bars.
Obviously, this can only work for categorical charts, not for
histograms.

The UI is a break from the old concept: the sorting is chosen
based on the chart, whereas for the rest of the features, the
viable charts are presented based on the binning, etc.

I found it confusing to have the possible charts be selected
based on sorting. I.e. if a non-bin sort mode is selected,
the histogram charts disappear. On the flip side, this would
be more consistent. We can change it later.

For value-based bar charts, there are three sort modes: by
bin, by count (i.e. number of dives in that bar) and by
value (i.e. length of the bar). This hopefully satisfies all
needs.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2021-12-31 18:29:06 +01:00 committed by Dirk Hohndel
parent f76752ee03
commit 1e5191e33e
10 changed files with 137 additions and 21 deletions

View file

@ -95,6 +95,18 @@
</layout>
</widget>
</item>
<item>
<widget class="QGroupBox" name="sortGroup">
<property name="title">
<string>Sorting</string>
</property>
<layout class="QVBoxLayout" name="chartLayout">
<item>
<widget class="QComboBox" name="var1Sort" />
</item>
</layout>
</widget>
</item>
<item>
<widget class="QGroupBox" name="restrictionGroup">
<property name="title">