transform_columns
transform_columns(data, columns, transform_func)
The function transform_columns applies a user-provided function to specified columns in a pandas DataFrame.
Parameters
| Name | Type | Description | Default |
|---|---|---|---|
data |
pd.DataFrame | The data parameter is a pandas DataFrame or a pandas DataFrameGroupBy object. It represents the data on which the transformation will be applied. |
required |
columns |
Union[str, List[str]] | The columns parameter can be either a string or a list of strings. These strings represent the column names or regular expressions that will be matched against the column names in the DataFrame. If a column name matches any of the provided patterns, the transformation function will be applied to that column. |
required |
transform_func |
Callable[[pd.Series], pd.Series] | A function that takes a pandas Series as input and returns a transformed pandas Series. This function will be applied to each column that matches the columns parameter. |
required |
Returns
| Type | Description |
|---|---|
| A modified copy of the input DataFrame where the specified columns are transformed using the provided function. |