Derived class intended for groupby specific aggregation usage. More...
#include <aggregation.hpp>
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 , 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< 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 197 of file aggregation.hpp.