Peter Otten wrote:
> Daiyue Weng wrote:
>
>> Hi, I tried to use DataFrame.values to convert a list of columns in a
>> dataframe to a numpy ndarray/matrix,
>>
>> matrix = df.values[:, list_of_cols]
>>
>> but got an error,
>>
>> IndexError: only integers, slices (:), ellipsis (...), numpy.newaxi
Daiyue Weng wrote:
> Hi, I tried to use DataFrame.values to convert a list of columns in a
> dataframe to a numpy ndarray/matrix,
>
> matrix = df.values[:, list_of_cols]
>
> but got an error,
>
> IndexError: only integers, slices (:), ellipsis (...), numpy.newaxis
> (None) and integer or boolea
Hi, I tried to use DataFrame.values to convert a list of columns in a
dataframe to a numpy ndarray/matrix,
matrix = df.values[:, list_of_cols]
but got an error,
IndexError: only integers, slices (:), ellipsis (...), numpy.newaxis
(None) and integer or boolean arrays are valid indices
so what's
