cudf/replace.hpp
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16 
17 #pragma once
18 
19 #include <cudf/types.hpp>
20 #include <memory>
21 
22 namespace cudf {
35 enum class replace_policy : bool { PRECEDING, FOLLOWING };
36 
50 std::unique_ptr<column> replace_nulls(
51  column_view const& input,
52  column_view const& replacement,
53  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
54 
67 std::unique_ptr<column> replace_nulls(
68  column_view const& input,
69  scalar const& replacement,
70  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
71 
84 std::unique_ptr<column> replace_nulls(
85  column_view const& input,
87  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
88 
110 std::unique_ptr<column> replace_nans(
111  column_view const& input,
112  column_view const& replacement,
113  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
114 
135 std::unique_ptr<column> replace_nans(
136  column_view const& input,
137  scalar const& replacement,
138  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
139 
151 std::unique_ptr<column> find_and_replace_all(
152  column_view const& input_col,
153  column_view const& values_to_replace,
154  column_view const& replacement_values,
155  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
156 
202 std::unique_ptr<column> clamp(
203  column_view const& input,
204  scalar const& lo,
205  scalar const& lo_replace,
206  scalar const& hi,
207  scalar const& hi_replace,
208  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
209 
248 std::unique_ptr<column> clamp(
249  column_view const& input,
250  scalar const& lo,
251  scalar const& hi,
252  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
253 
268 std::unique_ptr<column> normalize_nans_and_zeros(
269  column_view const& input,
270  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
271 
284  // end of group
286 } // namespace cudf
cudf::replace_nans
std::unique_ptr< column > replace_nans(column_view const &input, column_view const &replacement, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Replaces all NaN values in a column with corresponding values from another column.
cudf::find_and_replace_all
std::unique_ptr< column > find_and_replace_all(column_view const &input_col, column_view const &values_to_replace, column_view const &replacement_values, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Return a copy of input_col replacing any values_to_replace[i] found with replacement_values[i].
cudf::replace_policy
replace_policy
Policy to specify the position of replacement values relative to null rows.
Definition: cudf/replace.hpp:35
cudf::column_view
A non-owning, immutable view of device data as a column of elements, some of which may be null as ind...
Definition: column_view.hpp:300
types.hpp
Type declarations for libcudf.
cudf::mutable_column_view
A non-owning, mutable view of device data as a column of elements, some of which may be null as indic...
Definition: column_view.hpp:448
cudf::scalar
An owning class to represent a singular value.
Definition: scalar.hpp:46
cudf::clamp
std::unique_ptr< column > clamp(column_view const &input, scalar const &lo, scalar const &lo_replace, scalar const &hi, scalar const &hi_replace, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Replaces values less than lo in input with lo_replace, and values greater than hi with hi_replace.
cudf
cuDF interfaces
Definition: aggregation.hpp:34
cudf::replace_nulls
std::unique_ptr< column > replace_nulls(column_view const &input, column_view const &replacement, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Replaces all null values in a column with corresponding values of another column.
rmm::mr::device_memory_resource
cudf::normalize_nans_and_zeros
std::unique_ptr< column > normalize_nans_and_zeros(column_view const &input, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Copies from a column of floating-point elements and replaces -NaN and -0.0 with +NaN and +0....