Ndtyjky

Problem: Using same R-file, The R terminal behaves different compared to Rstudio.

When running below R-file several times, in Rstudio I get the correct behaviour.

• First run [count=20], rest of run [count=1].

When running same R-file several times from a terminal, using [Rscript]:

• First run [count=20], rest of run [count=20].

Wanted behaviour:

I need the R terminal to behave same as R studio , creating counter with value [20] and for the rest of the times put it to value [1].

My environment:

Ubuntu Linux 18.04

R-studio: 1.1.453

Terminal (Bash 4.4.19, R v.3.4.4)

Content of R-file:

setwd ("/tmp-r") # Set working directory.



# Set [count] to 20 if [count] does not exists.

# Set [count] to 1 if [count] exists.

if (!exists('count')) {

  count <- 20

} else {

  count <- 1

}



save.image() # Save.

With input from comments, I found 2 issues that solves the problem. Both for the minified test-script I published as a question, and my expanded script.

1) Add [load ('RData')], in the beginning since the load behaviour differs between Rstudio and R terminal. Rstudio dynamically update the global environment whenever you send in a change in the Rstudio console. R terminal loses the session between calls and therefor R terminal needs the R-file to start with [load ('RData')].

2) To solve my expanded script, I found out that the local [.Rprofile] has a [save.image('.RData)] at the end of the script. When removing that command in [.Rprofile] it solves the bigger script.