## Uses of Class
org.apache.sysds.runtime.functionobjects.IndexFunction

- Packages that use IndexFunction
  Package | Description
  --- | ---
  org.apache.sysds.runtime.functionobjects |
  org.apache.sysds.runtime.matrix.operators |

- - ### Uses of IndexFunction in org.apache.sysds.runtime.functionobjects

    Subclasses of IndexFunction in org.apache.sysds.runtime.functionobjects
    Modifier and Type | Class and Description
    --- | ---
    `class` | `DiagIndex`
    `class` | `OffsetColumnIndex`
    `class` | `ReduceAll`
    `class` | `ReduceCol`
    `class` | `ReduceDiag`
    `class` | `ReduceRow`
    `class` | `RevIndex`
    `class` | `SortIndex` This index function is NOT used for actual sorting but just as a reference in ReorgOperator in order to identify sort operations.
    `class` | `SwapIndex`

  - ### Uses of IndexFunction in org.apache.sysds.runtime.matrix.operators

    Fields in org.apache.sysds.runtime.matrix.operators declared as IndexFunction
    Modifier and Type | Field and Description
    --- | ---
    `IndexFunction` | ReorgOperator.`fn`
    `IndexFunction` | AggregateUnaryOperator.`indexFn`
    `IndexFunction` | AggregateTernaryOperator.`indexFn`

    Methods in org.apache.sysds.runtime.matrix.operators with parameters of type IndexFunction
    Modifier and Type | Method and Description
    --- | ---
    `ReorgOperator` | ReorgOperator.`setFn(IndexFunction fn)`

    Constructors in org.apache.sysds.runtime.matrix.operators with parameters of type IndexFunction
    Constructor and Description
    `AggregateTernaryOperator(ValueFunction inner, AggregateOperator outer, IndexFunction ixfun)`
    `AggregateTernaryOperator(ValueFunction inner, AggregateOperator outer, IndexFunction ixfun, int numThreads)`
    `AggregateUnaryOperator(AggregateOperator aop, IndexFunction iop)`
    `AggregateUnaryOperator(AggregateOperator aop, IndexFunction iop, int numThreads)`
    `ReorgOperator(IndexFunction p)`
    `ReorgOperator(IndexFunction p, int numThreads)`

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