RobustScaler().fit_transform(df['sex'])

error:

Expected 2D array, got 1D array instead:
Reshape your data either using array.reshape(-1, 1) if your data has a single feature or array.reshape(1, -1) if it contains a single sample.

when I tried to reshape my array

RobustScaler().fit_transform(df['sex'].reshape(1,-1)) 

it's shows me this error:

'Series' object has no attribute 'reshape'

CodePudding user response：

You can try two ways:

1. RobustScaler().fit_transform(df['sex'].values.reshape(1,-1))
2. RobustScaler().fit_transform(df[['sex']])

1st converts df series to numpy array and then reshape it to 2-d. 2nd takes a dataframe containing one column instead of series.