Source code for torcheeg.transforms.label.string
import re
from typing import List, Union, Dict
from ..base_transform import LabelTransform
[docs]class StringToInt(LabelTransform):
r'''
Identify numbers in strings and convert strings to numbers. If there is no number in the string, the output corresponding to the string is 0.
.. code-block:: python
transform = StringToInt()
transform(y='None')['y']
>>> 0
transform = StringToInt()
transform(y='sub001')['y']
>>> 1
:obj:`StringToInt` allows converting a list of strings to a list of numbers with the same conversion behavior as a single string.
.. code-block:: python
transform = StringToInt()
transform(y=['sub001', '4'])['y']
>>> 1, 4
.. automethod:: __call__
'''
def __init__(self):
super(StringToInt, self).__init__()
[docs] def __call__(self, *args, y: Union[str, List[str]], **kwargs) -> Union[int, List[int]]:
r'''
Args:
label (str): The input label or list of labels.
Returns:
int: The output label or list of labels after binarization.
'''
return super().__call__(*args, y=y, **kwargs)
def apply(self, y: Union[str, List[str]], **kwargs) -> Union[int, List[int]]:
if isinstance(y, list):
return [self.opt(i) for i in y]
return self.opt(y)
def opt(self, y: str) -> int:
if not isinstance(y, str):
return y
nums = re.findall(r"\d+", y)
if len(nums) == 0:
return 0
return int(nums[0])
