pandas subsets single column to Series or DataFrame

When subsetting one column named JPM from a dataframe df

df

1)

if you'd like to have a Series named JPM, then do

df.loc[:, 'JPM']

Series

Afterwards, you could subset the output Series in 1 dimension, e.g.

df.loc[:, 'JPM'][0] -> an item: -1000.0

2)

if you'd like to have a DataFrame with one column named JPM, then do

df.loc[:, ['JPM']] Note that inner bracket

DataFrame

Afterwards, you could subset the output DataFrame in 2 dimensions, e.g.

df.loc[:, ['JPM']].iloc[0, :] -> a Series: -1000 named '2008-01-02 00:00:00'

Series

df.loc[:, ['JPM']].iloc[0, 0] -> an item: -1000

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