## Uses of Class
org.apache.sysds.runtime.compress.colgroup.ColGroupValue

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

- - ### Uses of ColGroupValue in org.apache.sysds.runtime.compress.colgroup

    Subclasses of ColGroupValue in org.apache.sysds.runtime.compress.colgroup
    Modifier and Type | Class and Description
    --- | ---
    `class` | `ColGroupConst`
    `class` | `ColGroupDDC` Class to encapsulate information about a column group that is encoded with dense dictionary encoding (DDC).
    `class` | `ColGroupOffset` Base class for column groups encoded with various types of bitmap encoding.
    `class` | `ColGroupOLE` Class to encapsulate information about a column group that is encoded with simple lists of offsets for each set of distinct values.
    `class` | `ColGroupRLE` A group of columns compressed with a single run-length encoded bitmap.
    `class` | `ColGroupSDC` Column group that sparsely encodes the dictionary values.
    `class` | `ColGroupSDCSingle` Column group that sparsely encodes the dictionary values.
    `class` | `ColGroupSDCSingleZeros` Column group that sparsely encodes the dictionary values.
    `class` | `ColGroupSDCZeros` Column group that sparsely encodes the dictionary values.

    Methods in org.apache.sysds.runtime.compress.colgroup that return ColGroupValue
    Modifier and Type | Method and Description
    --- | ---
    `ColGroupValue` | ColGroupValue.`copy()`

    Methods in org.apache.sysds.runtime.compress.colgroup with parameters of type ColGroupValue
    Modifier and Type | Method and Description
    --- | ---
    `Dictionary` | ColGroupValue.`preAggregateThatIndexStructure(ColGroupValue that, boolean preModify)` Pre aggregate into a dictionary.

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