cudf::groupby_aggregation Class Reference

Derived class intended for groupby specific aggregation usage. More...

`#include <aggregation.hpp>`

Inheritance diagram for cudf::groupby_aggregation:

## Additional Inherited Members | |

Public Types inherited from cudf::aggregation | |

enum | Kind { SUM, PRODUCT, MIN, MAX, COUNT_VALID, COUNT_ALL, ANY, ALL, SUM_OF_SQUARES, MEAN, M2, VARIANCE, STD, MEDIAN, QUANTILE, ARGMAX, ARGMIN, NUNIQUE, NTH_ELEMENT, ROW_NUMBER, RANK, COLLECT_LIST, COLLECT_SET, LEAD, LAG, PTX, CUDA, MERGE_LISTS, MERGE_SETS, MERGE_M2, COVARIANCE, CORRELATION, TDIGEST, MERGE_TDIGEST } |

Possible aggregation operations. More... | |

Public Member Functions inherited from cudf::aggregation | |

aggregation (aggregation::Kind a) | |

Construct a new aggregation object. More... | |

virtual bool | is_equal (aggregation const &other) const |

Compares two aggregation objects for equality. More... | |

virtual size_t | do_hash () const |

Computes the hash value of the aggregation. More... | |

virtual std::unique_ptr< aggregation > | clone () const =0 |

Clones the aggregation object. More... | |

virtual std::vector< std::unique_ptr< aggregation > > | get_simple_aggregations (data_type col_type, cudf::detail::simple_aggregations_collector &collector) const =0 |

Get the simple aggregations that this aggregation requires to compute. More... | |

virtual void | finalize (cudf::detail::aggregation_finalizer &finalizer) const =0 |

Compute the aggregation after pre-requisite simple aggregations have been computed. More... | |

Public Attributes inherited from cudf::aggregation | |

Kind | kind |

The aggregation to perform. | |

Derived class intended for groupby specific aggregation usage.

Definition at line 195 of file aggregation.hpp.

The documentation for this class was generated from the following file:

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