# Package org.apache.sysds.runtime.compress.colgroup.dictionary

- Class Summary
  Class | Description
  --- | ---
  ADictionary | This dictionary class aims to encapsulate the storage and operations over unique tuple values of a column group.
  Dictionary | This dictionary class aims to encapsulate the storage and operations over unique floating point values of a column group.
  DictionaryFactory |
  MatrixBlockDictionary |
  QDictionary | This dictionary class aims to encapsulate the storage and operations over unique floating point values of a column group.

- Enum Summary
  Enum | Description
  --- | ---
  DictionaryFactory.Type |

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