unary#

pylibcudf.unary.UnaryOperator#

See also cudf::unary_operator.

Enum members

  • SIN

  • COS

  • TAN

  • ARCSIN

  • ARCCOS

  • ARCTAN

  • SINH

  • COSH

  • TANH

  • ARCSINH

  • ARCCOSH

  • ARCTANH

  • EXP

  • LOG

  • SQRT

  • CBRT

  • CEIL

  • FLOOR

  • ABS

  • RINT

  • BIT_COUNT

  • BIT_INVERT

  • NOT

  • NEGATE

pylibcudf.unary.cast(Column input, DataType data_type, Stream stream=None) → Column#

Cast a column to a different data type.

For details, see cast().

Parameters:
inputColumn

The column to check.

data_typeDataType

The data type to cast to.

streamStream | None

CUDA stream on which to perform the operation.

Returns:
pylibcudf.Column

A boolean column with True representing null values.

pylibcudf.unary.is_nan(Column input, Stream stream=None) → Column#

Check whether elements of a column are nan.

For details, see is_nan().

Parameters:
inputColumn

The column to check.

streamStream | None

CUDA stream on which to perform the operation.

Returns:
pylibcudf.Column

A boolean column with True representing nan values.

pylibcudf.unary.is_not_nan(Column input, Stream stream=None) → Column#

Check whether elements of a column are not nan.

For details, see is_not_nan().

Parameters:
inputColumn

The column to check.

streamStream | None

CUDA stream on which to perform the operation.

Returns:
pylibcudf.Column

A boolean column with True representing non-nan values.

pylibcudf.unary.is_null(Column input, Stream stream=None) → Column#

Check whether elements of a column are null.

For details, see is_null().

Parameters:
inputColumn

The column to check.

streamStream | None

CUDA stream on which to perform the operation.

Returns:
pylibcudf.Column

A boolean column with True representing null values.

pylibcudf.unary.is_supported_cast(DataType from_, DataType to) → bool#

Check if a cast between datatypes is supported.

For details, see is_supported_cast().

Parameters:
from_

The source datatype

to

The target datatype

Returns:
bool

True if the cast is supported.

pylibcudf.unary.is_valid(Column input, Stream stream=None) → Column#

Check whether elements of a column are valid.

For details, see is_valid().

Parameters:
inputColumn

The column to check.

streamStream | None

CUDA stream on which to perform the operation.

Returns:
pylibcudf.Column

A boolean column with True representing valid values.

pylibcudf.unary.unary_operation(Column input, unary_operator op, Stream stream=None) → Column#

Perform a unary operation on a column.

For details, see unary_operation().

Parameters:
inputColumn

The column to operate on.

opUnaryOperator

The operation to perform.

streamStream | None

CUDA stream on which to perform the operation.

Returns:
pylibcudf.Column

The result of the unary operation