Automated variable grouping in Variable Importance

[hbaniecki]

Export group_variables function and promote the explainer %>% group_variables %>% variable_importance pipeline to deal with correlated variables.

[hbaniecki]

Additionally: use group_variables to color these groups on the 'not grouped' variable importance plot.

[pbiecek]

the group_variables will be moved to https://github.com/kasiapekala/aspectImportance/ (which will be named triplot).

Let's move this issue to aspectImportance package

[hbaniecki]

I wanted to add group_variables to this package as well (it's not complicated). The problem is that it only works for numerical variables, so it would be hard to plug into variable_importance for now.

[hbaniecki]

I guess that it will be a part of triplot package.