| Package | Description | 
|---|---|
| org.apache.sysds.runtime.compress.readers | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ReaderColumnSelectionBitSet | 
| class  | ReaderColumnSelectionDenseMultiBlock | 
| class  | ReaderColumnSelectionDenseMultiBlockTransposed | 
| class  | ReaderColumnSelectionDenseSingleBlock | 
| class  | ReaderColumnSelectionDenseSingleBlockTransposed | 
| class  | ReaderColumnSelectionSparseUsed to extract the values at certain indexes from each row in a sparse matrix
 
 Keeps returning all-zeros arrays until reaching the last possible index. | 
| class  | ReaderColumnSelectionSparseTransposedUsed to extract the values at certain indexes from each row in a sparse matrix
 
 Keeps returning all-zeros arrays until reaching the last possible index. | 
| class  | ReaderCompressedSelection | 
| Modifier and Type | Method and Description | 
|---|---|
| static ReaderColumnSelection | ReaderColumnSelection. createCompressedReader(CompressedMatrixBlock compBlock,
                      int[] colIndices) | 
| static ReaderColumnSelection | ReaderColumnSelection. createReader(MatrixBlock rawBlock,
            int[] colIndices,
            boolean transposed) | 
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