* [CI] Add noLD test
* Make noLD test only trigger with a PR comment
* [CI] Don't install stringi
* Add the Titanic example as a unit test
* Document trigger
* add to index
* Clarify that it needs to be a review comment
* Disable JSON serialization for now.
* Multi-class classification is checkpointing for each iteration.
This brings significant overhead.
Revert: 90355b4f007ae
* Set R tests to use binary.
* Change DefaultEvalMetric of classification from error to logloss
* Change default binary metric in plugin/example/custom_obj.cc
* Set old error metric in python tests
* Set old error metric in R tests
* Fix missed eval metrics and typos in R tests
* Fix setting eval_metric twice in R tests
* Add warning for empty eval_metric for classification
* Fix Dask tests
Co-authored-by: Hyunsu Cho <chohyu01@cs.washington.edu>
* [R] Fix empty empty tests and a test warnings
* [R] Remove stringi dependency (fix#5905)
* Fix R lint check
* [R] Fix automatic conversion to factor in R < 4.0.0 in xgb.model.dt.tree
* Add `R` Makefile variable
Co-authored-by: Philip Hyunsu Cho <chohyu01@cs.washington.edu>
* 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>
* [CI] Move lint to a separate script
* [CI] Improved lintr launcher
* Add lintr as a separate action
* Add custom parsing logic to print out logs
* Fix lintr issues in demos
* Run R demos
* Fix CRAN checks
* Install XGBoost into R env before running lintr
* Install devtools (needed to run demos)
* [R] Add a compatibility layer to load Booster from an old RDS
* Modify QuantileHistMaker::LoadConfig() to be backward compatible with 1.1.x
* Add a big warning about compatibility in QuantileHistMaker::LoadConfig()
* Add testing suite
* Discourage use of saveRDS() in CRAN doc
* [R-package] replace uses of T and F with TRUE and FALSE
* enable linting
* Remove skip
Co-authored-by: Philip Hyunsu Cho <chohyu01@cs.washington.edu>
* Set output margin to True for custom objective in Python and R.
* Add a demo for writing multi-class custom objective function.
* Run tests on selected demos.
* Add bindings for serialization.
* Change `xgb.save.raw' into full serialization instead of simple model.
* Add `xgb.load.raw' for unserialization.
* Run devtools.
