round.hpp
前往此文件的文档。
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4  * Licensed under the Apache License, Version 2.0 (the "License");
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16 
17 #pragma once
18 
19 #include <cudf/column/column.hpp>
21 #include <cudf/utilities/export.hpp>
23 
24 namespace CUDF_EXPORT cudf {
25 
40 enum class rounding_method : int32_t { HALF_UP, HALF_EVEN };
41 
75 std::unique_ptr<column> round(
76  column_view const& input,
77  int32_t decimal_places = 0,
78  rounding_method method = rounding_method::HALF_UP,
81  // end of group
83 } // namespace CUDF_EXPORT cudf
设备数据的非拥有、不可变视图,表示为一个元素列,其中一些元素可能为空...
cudf::column 的类定义。
rmm::cuda_stream_view const get_default_stream()
获取当前默认流。
rmm::device_async_resource_ref get_current_device_resource_ref()
获取当前设备内存资源的引用。
cuda::mr::async_resource_ref< cuda::mr::device_accessible > device_async_resource_ref
rounding_method
cudf::round 的不同舍入方法
定义: round.hpp:40
std::unique_ptr< column > round(column_view const &input, int32_t decimal_places=0, rounding_method method=rounding_method::HALF_UP, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
将列中的所有值舍入到指定的小数位数。
cuDF 接口
定义: host_udf.hpp:37