Status: To Do
Fix Version/s: None
It would be nice to have the ability to select a tool on a 1D (e.g., histogram) or 2D (e.g., x-y) plot that would allow the visualization and graphical setting of a selection region for filtering on the associated variable.
One possible realization would be as a pair of draggable vertical (or horizontal, for the y axis in a 2D plot) lines superposed on the plot. Small triangles / arrows attached to the lines could indicate the direction of the selection and allow "exclusive" selections (x not between 7 and 9) to be visualized.
It is basically visualize the filters. This ticket will capture the design and plan the scope. There will be several tickets to implement different scenario in the future.
Complication #2: would this be linked to filters that have been typed into column headings in the underlying table? Ideally: yes.
we do have linked filters for density plot (2d histogram) at the moment, not yet for histogram.
Also exclusive selection (filtering out rather that filtering in) is not yet supported. It requires 'OR' filter, which is not yet implemented.
Complication #1: the variable on an axis may be a complex combination of the variables from the underlying table. We need to be sure that the filtering model allows filtering on derived variables.