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cudf::groupby_aggregation Class Reference

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

#include <aggregation.hpp>

Inheritance diagram for cudf::groupby_aggregation:
cudf::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 ,
  EWMA , RANK , COLLECT_LIST , COLLECT_SET ,
  LEAD , LAG , PTX , CUDA ,
  HOST_UDF , MERGE_LISTS , MERGE_SETS , MERGE_M2 ,
  COVARIANCE , CORRELATION , TDIGEST , MERGE_TDIGEST ,
  HISTOGRAM , MERGE_HISTOGRAM
}
 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< aggregationclone () 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.
 

Detailed Description

Derived class intended for groupby specific aggregation usage.

Definition at line 200 of file aggregation.hpp.


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