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
 *
 * https://apache.ac.cn/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());
 // 组结束
} // namespace CUDF_EXPORT cudf