Method fit_transform

sklearn/preprocessing/_label.py:107–122

Fit label encoder and return encoded labels. Parameters ---------- y : array-like of shape (n_samples,) Target values. Returns ------- y : array-like of shape (n_samples,) Encoded labels.

(self, y)

        return self

    def fit_transform(self, y):
        """Fit label encoder and return encoded labels.

        Parameters
        ----------
        y : array-like of shape (n_samples,)
            Target values.

        Returns
        -------
        y : array-like of shape (n_samples,)
            Encoded labels.
        """
        y = column_or_1d(y, warn=True)
        self.classes_, y = _unique(y, return_inverse=True)
        return y

    def transform(self, y):
        """Transform labels to normalized encoding.