Issue ##438 - Add tests to check existing data.table functions work with data.frames #799
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Description
This PR closes #438.
This PR adds additional tests to make sure that all exported functions that accept a
data.table
also work with adata.frame
. I simply went through a list of the functions and added tests.I got the list of functions to check as such (thanks, GPT):
Checklist
lintr::lint_package()
to check for style issues introduced by my changes.