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Add support for cross-validation using query ID (#4474)

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* adding support for matrix slicing with query ID for cross-validation

* hail mary test of unrar installation for windows tests

* trying to modify tests to run in Github CI

* Remove dependency on wget and unrar

* Save error log from R test

* Relax assertion in test_training

* Use int instead of bool in C function interface

* Revise R interface

* Add XGDMatrixSliceDMatrixEx and keep old XGDMatrixSliceDMatrix for API compatibility
This commit is contained in:
Bryan Woods
2019-05-23 19:45:02 +02:00
committed by Philip Hyunsu Cho
parent 5a567ec249
commit 278562db13
9 changed files with 223 additions and 18 deletions
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7
R-package/src/xgboost_R.cc
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@@ -136,9 +136,10 @@ SEXP XGDMatrixSliceDMatrix_R(SEXP handle, SEXP idxset) {
idxvec[i] = INTEGER(idxset)[i] - 1;
}
DMatrixHandle res;
CHECK_CALL(XGDMatrixSliceDMatrix(R_ExternalPtrAddr(handle),
BeginPtr(idxvec), len,
&res));
CHECK_CALL(XGDMatrixSliceDMatrixEx(R_ExternalPtrAddr(handle),
BeginPtr(idxvec), len,
&res,
0));
ret = PROTECT(R_MakeExternalPtr(res, R_NilValue, R_NilValue));
R_RegisterCFinalizerEx(ret, _DMatrixFinalizer, TRUE);
R_API_END();