datatable.Frame.__delitem__()¶
This methods deletes rows and columns that would have been selected from
the frame if not for the del
keyword.
All parameters have the same meaning as in the getter
DT[i, j, ...]
, with the only
restriction that j
must select columns from the main frame only (i.e. not
from the joined frame(s)), and it must select them by reference. Selecting
by reference means it should be possible to tell where each column was in
the original frame.
There are several modes of delete operation, depending on whether i
or
j
are “slice-all” symbols: