8 examples of 'pandas fillna specific column' in Python

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114def panel_fillna(panel, type="bfill"):
115 """
116 fill nan along the 3rd axis
117 :param panel: the panel to be filled
118 :param type: bfill or ffill
119 """
120 frames = {}
121 for item in panel.items:
122 if type == "both":
123 frames[item] = panel.loc[item].fillna(axis=1, method="bfill").\
124 fillna(axis=1, method="ffill")
125 else:
126 frames[item] = panel.loc[item].fillna(axis=1, method=type)
127 return pd.Panel(frames)
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19def fill_missing_values(df_data):
20 """Fill missing values in data frame, in place."""
21 df_data.fillna(method="ffill", inplace="True")
22 df_data.fillna(method='bfill', inplace="True")
39def _drop_col(self, df):
40 '''
41 Drops last column, which was added in the parsing procedure due to a
42 trailing white space for each sample in the text file
43 Arguments:
44 df: pandas dataframe
45 Return:
46 df: original df with last column dropped
47 '''
48 return df.drop(df.columns[-1], axis=1)
519def get_and_fill_timezone(df):
520 '''
521 this is new to deal with healthkit data
522 requires that a data frame that contains payload and HKTimeZone is passed
523 '''
524 df = get_healthkit_timezone(df)
525
526 df["timezone"].fillna(method='ffill', inplace=True)
527 df["timezone"].fillna(method='bfill', inplace=True)
528
529 return df["timezone"]
21@cat.register_transform('hdf')
22def _(col):
23 if 'nan' not in col.cat.categories:
24 col = col.cat.add_categories(['nan'])
25 return col.fillna('nan').apply(str)
78def _clean_column(self, column):
79 if not isinstance(column, (int, str, unicode)):
80 raise ValueError('{} is not a valid column'.format(column))
81 return column in self.df.columns
38def fill_empty(df: pd.DataFrame) -> pd.DataFrame:
39 """Fill the gaps in the 'original' column with values from 'index'
40 Args:
41 df:
42 Returns:
43 """
44 index = df["original"].isnull()
45 df.loc[index, "original"] = df.loc[index, "index"]
46
47 return df
568@staticmethod
569def pd() -> None:
570 post = SampleData.get('pds_obj_10k').fillna(0.0)

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