# Uses of Package
org.apache.sysds.runtime.compress.colgroup

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

- Classes in org.apache.sysds.runtime.compress.colgroup used by org.apache.sysds.runtime.compress
  Class and Description
  AColGroup Abstract Class that is the lowest class type for the Compression framework.
  AColGroup.CompressionType Public super types of compression ColGroups supported
  ColGroupUncompressed Column group type for columns that are stored as dense arrays of doubles.

- Classes in org.apache.sysds.runtime.compress.colgroup used by org.apache.sysds.runtime.compress.colgroup
  Class and Description
  AColGroup Abstract Class that is the lowest class type for the Compression framework.
  AColGroup.CompressionType Public super types of compression ColGroups supported
  ColGroupCompressed Base class for column groups encoded Encoded in a compressed manner.
  ColGroupDDC Class to encapsulate information about a column group that is encoded with dense dictionary encoding (DDC).
  ColGroupEmpty
  ColGroupOffset Base class for column groups encoded with various types of bitmap encoding.
  ColGroupSDC Column group that sparsely encodes the dictionary values.
  ColGroupSDCSingle Column group that sparsely encodes the dictionary values.
  ColGroupSDCSingleZeros Column group that sparsely encodes the dictionary values.
  ColGroupSDCZeros Column group that sparsely encodes the dictionary values.
  ColGroupValue Base class for column groups encoded with value dictionary.

- Classes in org.apache.sysds.runtime.compress.colgroup used by org.apache.sysds.runtime.compress.estim
  Class and Description
  AColGroup.CompressionType Public super types of compression ColGroups supported

- Classes in org.apache.sysds.runtime.compress.colgroup used by org.apache.sysds.runtime.compress.lib
  Class and Description
  AColGroup Abstract Class that is the lowest class type for the Compression framework.

Copyright © 2021 The Apache Software Foundation. All rights reserved.