Status: To Do
Fix Version/s: None
Histogram displayed should reflect the results of a filter or filters applied on variables other than the x-axis variable of the histogram. It would be very useful to be able to (optionally?) see the histogram both before and after the application of the filter. (That is, to see the two histograms over-plotted.)
When doing so, there must be choices available for the vertical scaling - at a minimum, a choice between displaying both on the same scale, thus showing quantitatively the data that have been removed as well (as the space between the two histograms), or autoscaling both independently (more useful when most of the data have been removed by the filter, making the post-filter histogram uselessly shallow when displayed at the same scale).
- option to whether displaying histograms both before and after filter(s) applied
- option to select the scaling (same for both, or autoscale for each histogram)
- design the UI layout
- implement it
- mentioned in
It is sometimes useful to permit the display of the data removed by the filter instead of the pre-filter data.
This is particularly useful, for instance, when filtering on a category variable like a boolean.
If this capability is provided, the UI has to be given careful thought so that the difference between the two displays:
- post-filter overlaid on pre-filter
- post-filter overlaid on removed-by-filter
is readily apparent from the graphical representation.
Since we are supporting auto-binning algorithms (which I like) we need to think about whether we would permit the pre- and post-filter histograms to have different binnings.