ndarray throws Data must be 1-dimensional

Question

    input_data_ndarray = np.array(
        [['chicken', 'creamofchickensoup'], ['Chicken', 'CreamofChickensoup'], ['chicken', 'creamofchickensoup']])
    result = pd.Series(input_data_ndarray).apply(lambda x: tuple(sorted(x))).nunique()

For the above code, throws

raise Exception("Data must be 1-dimensional")
E               Exception: Data must be 1-dimensional

Any idea about this issue?

Answer 1

This could help:

In [1959]: pd.Series(input_data_ndarray.tolist())                                                                                                                                                           
Out[1959]: 
0    [chicken, creamofchickensoup]
1    [Chicken, CreamofChickensoup]
2    [chicken, creamofchickensoup]
dtype: object

OR if you want a dataframe , do this:

In [1960]: pd.DataFrame(input_data_ndarray)                                                                                                                                                                 
Out[1960]: 
         0                   1
0  chicken  creamofchickensoup
1  Chicken  CreamofChickensoup
2  chicken  creamofchickensoup