np1
is missing. To avoid problems like this, use a reprex.
See the FAQ: How to do a minimal reproducible example reprex
for beginners.
Generating a reprex
uses a fresh session to assure that everything referenced in the code is there.
np1
is missing. To avoid problems like this, use a reprex.
See the FAQ: How to do a minimal reproducible example reprex
for beginners.
Generating a reprex
uses a fresh session to assure that everything referenced in the code is there.