a96039141a
* Use sparse page as singular CSR matrix representation * Simplify dmatrix methods * Reduce statefullness of batch iterators * BREAKING CHANGE: Remove prob_buffer_row parameter. Users are instead recommended to sample their dataset as a preprocessing step before using XGBoost.
33 lines
1.2 KiB
C++
33 lines
1.2 KiB
C++
// Copyright by Contributors
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#include <xgboost/data.h>
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#include "../../../src/data/simple_csr_source.h"
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#include "../helpers.h"
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TEST(SimpleCSRSource, SaveLoadBinary) {
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std::string tmp_file = CreateSimpleTestData();
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xgboost::DMatrix * dmat = xgboost::DMatrix::Load(tmp_file, true, false);
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std::remove(tmp_file.c_str());
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std::string tmp_binfile = TempFileName();
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dmat->SaveToLocalFile(tmp_binfile);
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xgboost::DMatrix * dmat_read = xgboost::DMatrix::Load(tmp_binfile, true, false);
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std::remove(tmp_binfile.c_str());
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EXPECT_EQ(dmat->Info().num_col_, dmat_read->Info().num_col_);
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EXPECT_EQ(dmat->Info().num_row_, dmat_read->Info().num_row_);
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EXPECT_EQ(dmat->Info().num_row_, dmat_read->Info().num_row_);
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auto row_iter = dmat->RowIterator();
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auto row_iter_read = dmat_read->RowIterator();
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// Test the data read into the first row
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row_iter->BeforeFirst(); row_iter->Next();
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row_iter_read->BeforeFirst(); row_iter_read->Next();
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auto first_row = row_iter->Value()[0];
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auto first_row_read = row_iter_read->Value()[0];
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EXPECT_EQ(first_row.length, first_row_read.length);
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EXPECT_EQ(first_row[2].index, first_row_read[2].index);
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EXPECT_EQ(first_row[2].fvalue, first_row_read[2].fvalue);
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row_iter = nullptr; row_iter_read = nullptr;
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}
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