Pandas : Convert 1D dataframe to 2D dataframe

I have pandas dataframe whose shape is (4628,).
How do I change the shape of dataframe to (4628,1)?

>Solution :

You might have a Series, you can turn it into DataFrame with Series.to_frame

s = pd.Series(range(10))

out = s.to_frame('col_name') # or .to_frame()

print(s.shape)

(10,)

print(out.shape)

(10, 1)

Don’t know how you get that Series, if you use a label like df['a'], you can try passing a list of labels instead, like df[['a']]