R Error: could not find function is_empty

Question

I have tried to run an old script (R 3.4?) with R 4.0... but it doesn't work.

is_empty(c(1,1,2,3))
Error in is_empty(c(1, 1, 2, 3)) : 
could not find function is_empty

but ?is_empty still work. Where am I wrong?

Have you reinstalled your old packages? R 4.0 Requires the reinstallation of packages that were build on R 3.x. — Sergio Romero, May 04 '20 at 16:11

score 3 · Answer 1 · edited Nov 19 '20 at 21:31

3

The is_empty() function is in the purrr package for R version 3.6.3. So you have to include the purrr package in your project. To install the purrr package, do the following:

install.packages ("purrr")

And use it in each of your projects by:

library ("purrr")

edited Nov 19 '20 at 21:31

Jeremy Caney

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answered Nov 19 '20 at 15:52

Agus Ramadona

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R Error: could not find function is_empty

1 Answers1