R-Code - Check duplication of a text column

Hi David, welcome!

You can use the tidystringdist package, take a look at this similar thread.

If you need more specific help please provide a minimal REPRoducible EXample (reprex). A reprex makes it much easier for others to understand your issue and figure out how to help.

If you've never heard of a reprex before, you might want to start by reading this FAQ: