Remove a code line from Rprofile.site .First

Source: R/startup.R

Goes through

is_in_.First_in_Rprofile.site(code, fixed = TRUE, ...)

Arguments

code

A character scalar with code to add at the beginning of the .First function in Rprofile.site
fixed

passed to grep
...

passed to grep

Value

logical, if code is in Rprofile.site or not.

References

https://stackoverflow.com/questions/1395301/how-to-get-r-to-recognize-your-working-directory-as-its-working-directory https://stackoverflow.com/questions/1189759/expert-r-users-whats-in-your-rprofile http://www.noamross.net/archives/2012-11-02-rprofile/ http://www.statmethods.net/interface/customizing.html

Examples

if (FALSE) {
is_in_.First_in_Rprofile.site("suppressMessages(library(installr))") # FALSE
add_to_.First_in_Rprofile.site("suppressMessages(library(installr))")
is_in_.First_in_Rprofile.site("suppressMessages(library(installr))") # TRUE
remove_from_.First_in_Rprofile.site("suppressMessages(library(installr))")
is_in_.First_in_Rprofile.site("suppressMessages(library(installr))") # FALSE
# this would still leave .First
}