(self, df)
| 218 | self.cols = cols |
| 219 | |
| 220 | def __call__(self, df): |
| 221 | def normalize(x, min_val=self.min_val, max_val=self.max_val): |
| 222 | return (x - min_val) / (max_val - min_val) |
| 223 | |
| 224 | df.loc(axis=1)[self.cols] = normalize(df[self.cols].values) |
| 225 | return df |
| 226 | |
| 227 | |
| 228 | class ZScoreNorm(Processor): |