learner.py 文件源码

def _score_preds(self, transformers, index):
        # Train scores
        xtemp, ytemp = slice_array(self.in_array, self.targets, index)
        if transformers:
            xtemp, ytemp = transformers.transform(xtemp, ytemp)

        t0 = time()

        if self.error_score is not None:
            try:
                scores = self.scorer(self.estimator, xtemp, ytemp)
            except Exception as exc:  # pylint: disable=broad-except
                warnings.warn(
                    "Scoring failed. Setting error score %r."
                    "Details:\n%r" % (self.error_score, exc),
                    FitFailedWarning)
                scores = self.error_score
        else:
            scores = self.scorer(self.estimator, xtemp, ytemp)
        pred_time = time() - t0

        return scores, pred_time