datatable.setdiff()¶
Find the set difference between frame0
and the other frames
.
Each frame should have only a single column or be empty.
The values in each frame will be treated as a set, and this function will
compute the
set difference
between the frame0
and the union of the other
frames, returning those values that are present in the frame0
,
but not present in any of the frames
.
Parameters¶
Frame
Input single-column frame.
Frame
| Frame
| ...
Input single-column frames.
Frame
A single-column frame. The column stype is the smallest common
stype of columns from the frames
.
NotImplementedError
The exception is raised when one frame columns has stype obj64
.
See Also¶
intersect()
– calculate the set intersection of values in the frames.symdiff()
– calculate the symmetric difference between the sets of values in the frames.union()
– calculate the union of values in the frames.unique()
– find unique values in a frame.