mindspore.dataset.text.TruncateSequencePair

class mindspore.dataset.text.TruncateSequencePair(max_length)[source]

Truncate a pair of 1-D string input so that their total length is less than the specified length.

Parameters: max_length (int) – The maximum total length of the output strings. If it is no less than the total length of the original pair of strings, no truncation is performed; otherwise, the longer of the two input strings is truncated until its total length equals this value.
Raises: TypeError – If max_length is not of type int.

Supported Platforms:: CPU

Examples

>>> import mindspore.dataset as ds
>>> import mindspore.dataset.text as text
>>>
>>> dataset = ds.NumpySlicesDataset(data={"col1": [[1, 2, 3]], "col2": [[4, 5]]})
>>> # Data before
>>> # |   col1    |   col2    |
>>> # +-----------+-----------|
>>> # | [1, 2, 3] |  [4, 5]   |
>>> # +-----------+-----------+
>>> truncate_sequence_pair_op = text.TruncateSequencePair(max_length=4)
>>> dataset = dataset.map(operations=truncate_sequence_pair_op)
>>> # Data after
>>> # |   col1    |   col2    |
>>> # +-----------+-----------+
>>> # |  [1, 2]   |  [4, 5]   |
>>> # +-----------+-----------+

Tutorial Examples:

Illustration of text transforms