features.py 文件源码

def _calculate(self, X, y, categorical, metafeatures, helpers):
        res = np.nansum(helpers.get_value("NumSymbols"))
        return res if np.isfinite(res) else 0


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# Statistical meta features
# Only use third and fourth statistical moment because it is common to
# standardize for the other two
# see Engels & Theusinger, 1998 - Using a Data Metric for Preprocessing Advice for Data Mining Applications.