Interactive figure-filtering of samples

[mfitzp]

Some mechanism (specific plots or other) of filtering data visually would be great. The simplest implementation would be the ability to create regions in a scatter plot that are then selected and output as a particular dataset (output port). In this way it would be possible, e.g. to use a PCA to filter data (cf. FACS data filtering).

How this would work on bar or line plots is another thing - or how to interpret the selection in a sensible way.

[mfitzp]

Implemented in v3.0.2 with commit a6f9643 all tools can now use selections from figure outputs for configuration. Selection of outputs can be implemented (e.g. in PCA)

[mfitzp]

This would be better if it were non-tool specific (e.g. the default visual plots would all allow data filtering in this way). Will probably rely on a sub-tool implementation if it happens.