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Implement slice via adapters (#5198)

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This commit is contained in:
Rory Mitchell
2020-01-14 12:55:41 +13:00
committed by GitHub
parent f100b8d878
commit a73e25e15f
7 changed files with 190 additions and 45 deletions
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7
src/data/simple_dmatrix.cc
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@@ -111,6 +111,11 @@ SimpleDMatrix::SimpleDMatrix(AdapterT* adapter, float missing, int nthread) {
weights.insert(weights.end(), batch.Weights(),
batch.Weights() + batch.Size());
}
if (batch.BaseMargin() != nullptr) {
auto& base_margin = mat.info.base_margin_.HostVector();
base_margin.insert(base_margin.end(), batch.BaseMargin(),
batch.BaseMargin() + batch.Size());
}
if (batch.Qid() != nullptr) {
qids.insert(qids.end(), batch.Qid(), batch.Qid() + batch.Size());
// get group
@@ -166,5 +171,7 @@ template SimpleDMatrix::SimpleDMatrix(DataTableAdapter* adapter, float missing,
int nthread);
template SimpleDMatrix::SimpleDMatrix(FileAdapter* adapter, float missing,
int nthread);
template SimpleDMatrix::SimpleDMatrix(DMatrixSliceAdapter* adapter, float missing,
int nthread);
} // namespace data
} // namespace xgboost