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[R] Add a compatibility layer to load Booster object from an old RDS file (#5940)

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* [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
This commit is contained in:
Philip Hyunsu Cho
2020-07-26 00:06:49 -07:00
committed by GitHub
parent 40361043ae
commit ace7fd328b
10 changed files with 251 additions and 7 deletions
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6
R-package/src/xgboost_R.cc
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@@ -375,7 +375,7 @@ SEXP XGBoosterSaveJsonConfig_R(SEXP handle) {
SEXP XGBoosterLoadJsonConfig_R(SEXP handle, SEXP value) {
R_API_BEGIN();
XGBoosterLoadJsonConfig(R_ExternalPtrAddr(handle), CHAR(asChar(value)));
CHECK_CALL(XGBoosterLoadJsonConfig(R_ExternalPtrAddr(handle), CHAR(asChar(value))));
R_API_END();
return R_NilValue;
}
@@ -397,9 +397,9 @@ SEXP XGBoosterSerializeToBuffer_R(SEXP handle) {
SEXP XGBoosterUnserializeFromBuffer_R(SEXP handle, SEXP raw) {
R_API_BEGIN();
XGBoosterUnserializeFromBuffer(R_ExternalPtrAddr(handle),
CHECK_CALL(XGBoosterUnserializeFromBuffer(R_ExternalPtrAddr(handle),
RAW(raw),
length(raw));
length(raw)));
R_API_END();
return R_NilValue;
}