Cuong Duong e51cba6195
Add SHAP summary plot using ggplot2 (#5882)
* add SHAP summary plot using ggplot2

* Update xgb.plot.shap

* Update example in xgb.plot.shap documentation

* update logic, add tests

* whitespace fixes

* whitespace fixes for test_helpers

* namespace for sd function

* explicitly declare variables that are automatically evaluated by data.table

* Fix R lint

Co-authored-by: Philip Hyunsu Cho <chohyu01@cs.washington.edu>
2020-08-18 18:04:09 -07:00
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