Hi Karl— Je Fri, 17 Jan 2020 12:31:07 -0800 skribis Karl: > LET/LIKE=oldvar newvar = ... > is not in Ferret or PyFerret v7.3; it was introduced in v7.4. It would be > best to upgrade to PyFerret v7.5. Ah, I did not realise this was a recently added feature when I came across this in the documentation -- very useful! —Marco