datatable.internal.frame_column_data_r()

frame_column_data_r
(

Return C pointer to the main data array of the column frame[i]. The column will be materialized if it was virtual.

Parameters

frame
Frame

The dt.Frame where to look up the column.

i
int

The index of a column, in the range [0; ncols).

return
ctypes.c_void_p

The pointer to the column’s internal data.