## Uses of Class
org.apache.sysds.runtime.compress.ReaderColumnSelection

- Packages that use ReaderColumnSelection
  Package | Description
  --- | ---
  org.apache.sysds.runtime.compress |

- - ### Uses of ReaderColumnSelection in org.apache.sysds.runtime.compress

    Subclasses of ReaderColumnSelection in org.apache.sysds.runtime.compress
    Modifier and Type | Class and Description
    --- | ---
    `class` | `ReaderColumnSelectionDense`
    `class` | `ReaderColumnSelectionDenseSample` considers only a subset of row indexes
    `class` | `ReaderColumnSelectionSparse` Used 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.

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