Derived class intended for rolling_window specific aggregation usage. More...
#include <aggregation.hpp>
Inheritance diagram for cudf::rolling_aggregation:
Protected Member Functions | |
| aggregation ()=delete | |
| constructor inherited from cudf::aggregation | |
| aggregation (aggregation::Kind a) | |
| constructor inherited from cudf::aggregation | |
Additional Inherited Members | |
 Public Types inherited from cudf::aggregation | |
| enum | Kind { SUM , SUM_WITH_OVERFLOW , 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 , BITWISE_AGG } |
| 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. | |
Detailed Description
Derived class intended for rolling_window specific aggregation usage.
As an example, rolling_window will only accept rolling_aggregation inputs, and the appropriate derived classes (sum_aggregation, mean_aggregation, etc) derive from this interface to represent these valid options.
Definition at line 198 of file aggregation.hpp.
The documentation for this class was generated from the following file:
