# Hierarchy For Package org.apache.sysds.runtime.matrix.data.sketch.countdistinct

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.sysds.runtime.matrix.data.sketch.countdistinct.BitMapValueCombiner (implements java.util.function.BinaryOperator<T>)
  - org.apache.sysds.runtime.matrix.data.sketch.CountDistinctSketch (implements org.apache.sysds.runtime.matrix.data.sketch.MatrixSketch)
    - org.apache.sysds.runtime.matrix.data.sketch.countdistinct.CountDistinctFunctionSketch