I've got a large dt (70k cols, character) that I'm digging through. Most cols have a wide range of values, but a noticeable population of them have only two nuisance values. I want to identify all these cols and then dump them.
Any advice?
These nuisance cols will contain ONLY the terms "**skipped**" or "dne".
I've already dumped all cols that contain a single record value.
