Don't load base. It is already loaded. On October 24, 2022 9:07:44 AM PDT, Kelly Thompson <kt1572...@gmail.com> wrote: ># Below, when using require(), why do I get the error message "Error >in if (!loaded) { : the condition has length > 1" ? > ># This is my reproducible code: > >#create a vector with the names of the packages I want to use >packages_i_want_to_use <- c('base', 'this_pac_does_not_exist') > ># Here I get error messages: >require( packages_i_want_to_use[1] ) >#Error in if (!loaded) { : the condition has length > 1 > >require( packages_i_want_to_use[2] ) >#Error in if (!loaded) { : the condition has length > 1 > ># Here I get what I expect: >require('base') > >require('this_pac_does_not_exist') >#Loading required package: this_pac_does_not_exist >#Warning message: >#In library(package, lib.loc = lib.loc, character.only = TRUE, >logical.return = TRUE, : ># there is no package called ‘this_pac_does_not_exist’ > >______________________________________________ >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >and provide commented, minimal, self-contained, reproducible code.
-- Sent from my phone. Please excuse my brevity. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.