quantiles.hpp

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/*
 * Copyright (c) 2019-2024, NVIDIA CORPORATION.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#pragma once
 
#include <cudf/scalar/scalar.hpp>
#include <cudf/table/table_view.hpp>
#include <cudf/tdigest/tdigest_column_view.hpp>
#include <cudf/types.hpp>
#include <cudf/utilities/export.hpp>
#include <cudf/utilities/memory_resource.hpp>
 
namespace CUDF_EXPORT cudf {
std::unique_ptr<column> quantile(
  column_view const& input,
  std::vector<double> const& q,
  interpolation interp               = interpolation::LINEAR,
  column_view const& ordered_indices = {},
  bool exact                         = true,
  rmm::cuda_stream_view stream       = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr  = cudf::get_current_device_resource_ref());
 
std::unique_ptr<table> quantiles(
  table_view const& input,
  std::vector<double> const& q,
  interpolation interp                           = interpolation::NEAREST,
  cudf::sorted is_input_sorted                   = sorted::NO,
  std::vector<order> const& column_order         = {},
  std::vector<null_order> const& null_precedence = {},
  rmm::cuda_stream_view stream                   = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr              = cudf::get_current_device_resource_ref());
 
std::unique_ptr<column> percentile_approx(
  tdigest::tdigest_column_view const& input,
  column_view const& percentiles,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = cudf::get_current_device_resource_ref());
  // end of group
}  // namespace CUDF_EXPORT cudf