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std::unique_ptr< scalar > | cudf::reduce (column_view const &col, reduce_aggregation const &agg, data_type output_dtype, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource()) |
| Computes the reduction of the values in all rows of a column. More...
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std::unique_ptr< scalar > | cudf::reduce (column_view const &col, reduce_aggregation const &agg, data_type output_dtype, std::optional< std::reference_wrapper< scalar const >> init, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource()) |
| Computes the reduction of the values in all rows of a column with an initial value. More...
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std::unique_ptr< column > | cudf::segmented_reduce (column_view const &segmented_values, device_span< size_type const > offsets, segmented_reduce_aggregation const &agg, data_type output_dtype, null_policy null_handling, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource()) |
| Compute reduction of each segment in the input column. More...
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std::unique_ptr< column > | cudf::segmented_reduce (column_view const &segmented_values, device_span< size_type const > offsets, segmented_reduce_aggregation const &agg, data_type output_dtype, null_policy null_handling, std::optional< std::reference_wrapper< scalar const >> init, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource()) |
| Compute reduction of each segment in the input column with an initial value. Only SUM, PRODUCT, MIN, MAX, ANY, and ALL aggregations are supported. More...
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std::unique_ptr< column > | cudf::scan (column_view const &input, scan_aggregation const &agg, scan_type inclusive, null_policy null_handling=null_policy::EXCLUDE, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource()) |
| Computes the scan of a column. More...
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std::pair< std::unique_ptr< scalar >, std::unique_ptr< scalar > > | cudf::minmax (column_view const &col, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource()) |
| Determines the minimum and maximum values of a column. More...
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