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Pandas set_index no suelta la columna

Ejecuto la siguiente función de código en mi marco de datos:

 del dfname["Unnamed: 0"] dfname["date"] = pd.to_datetime(dfname["date"]) dfname.set_index(dfname["date"], drop=True, inplace=True)

Pero la columna no cae (sé que el valor predeterminado es drop=True )

El marco de datos de salida se ve así . Estoy usando Phyton 3.6

over 4 years ago · Santiago Trujillo
1 answers
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0

Cambie la columna de DataFrame al nombre de la columna, también drop = True es predeterminado, por lo que es posible eliminarlo:

 dfname.set_index(dfname["date"], drop = True, inplace = True)

para:

 dfname.set_index("date", inplace = True)

Muestra :

 rng = pd.date_range('2017-04-03', periods=10) dfname = pd.DataFrame({'date': rng, 'a': range(10)}) dfname.set_index("date", inplace = True) print (dfname) a date 2017-04-03 0 2017-04-04 1 2017-04-05 2 2017-04-06 3 2017-04-07 4 2017-04-08 5 2017-04-09 6 2017-04-10 7 2017-04-11 8 2017-04-12 9

EDITAR:

Si la entrada es un archivo, use read_csv con los parámetros index_col y parse_dates para DatetimeIndex :

 df = pd.read_csv(file, index_col=['date'], parse_dates=['date'])
over 4 years ago · Santiago Trujillo Report
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