3 examples of 'pandas append to dataframe in loop' in Python
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142 def append_data(df1, df2): 143 ''' 144 Append df2 to df1 145 ''' 146 df = pd.concat((df1, df2)) 147 return df.groupby(df.index).first()
557 def pandas_outer_join(self, df_list): 558 if df_list is None: return None 559 560 # remove any None elements (which can't be joined!) 561 df_list = [i for i in df_list if i is not None] 562 563 if len(df_list) == 0: return None 564 elif len(df_list) == 1: return df_list[0] 565 566 # df_list = [dd.from_pandas(df) for df in df_list] 567 568 df_list = df_list[0].join(df_list[1:], how="outer") 569 570 return df_list
29 def _concat(df, type): 30 if df is None: 31 df = pd.DataFrame(_object_blocks[type]) 32 else: 33 _df = pd.DataFrame(_object_blocks[type]) 34 df = pd.concat([df, _df], sort=True) 35 return df