datatable.Frame.stype

Added in version v0.10.0

The common dt.stype for all columns.

This property is well-defined only for frames where all columns have the same stype.

Parameters

return
stype | None

For frames where all columns have the same stype, this common stype is returned. If a frame has 0 columns, None will be returned.

except
InvalidOperationError

This exception will be raised if the columns in the frame have different stypes.

See also

  • .stypes – tuple of stypes for all columns.