6 examples of 'how to reindex dataframe in python' in Python
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331 def _reindex_extra_source(self, df, source_date_index): 332 return df.reindex(index=source_date_index, method='ffill')
244 @classmethod 245 def reindex(cls, dataset, kdims=None, vdims=None): 246 # DataFrame based tables don't need to be reindexed 247 return dataset.data
653 def set_index_post_series(df, index_name, drop, column_dtype): 654 df2 = df.drop("_partitions", axis=1).set_index("_index", drop=True) 655 df2.index.name = index_name 656 df2.columns = df2.columns.astype(column_dtype) 657 return df2
367 def test_reindex(self): 368 foo = self.dv 369 bar = self.dv[:2, :2] 370 self.assertDataArrayIdentical(foo.reindex_like(bar), bar) 371 372 expected = foo.copy() 373 expected[:] = np.nan 374 expected[:2, :2] = bar 375 self.assertDataArrayIdentical(bar.reindex_like(foo), expected)
431 def force_index(df, n): 432 """Calculate Force Index for given data. 433 :param df: pandas.DataFrame 434 :param n: 435 :return: pandas.DataFrame 436 """ 437 F = pd.Series(df['close'].diff(n) * df['Volume'].diff(n), name='Force_' + str(n)) 438 df = df.join(F) 439 return df
114 def shuffleDataFrame(df): 115 """ Shuffles the rows of a dataframe """ 116 df.reset_index(inplace=True) 117 del df['index'] 118 return df.reindex(np.random.permutation(df.index))