Make R exit with non-zero status code

r exit
Setjmp picture Setjmp · Oct 7, 2011 · Viewed 23.3k times · Source

I am looking for the R equivalent of linux/POSIX exit(n) which will halt the process with exit code n, signaling to a parent process that an error had occurred. Does R have such a facility?

Answer

Joshua Ulrich picture Joshua Ulrich · Oct 7, 2011

It's an argument to quit(). See ?quit.

Arguments:

status: the (numerical) error status to be returned to the operating
        system, where relevant.  Conventionally ‘0’ indicates
        successful completion.

Details:

 Some error statuses are used by R itself.  The default error
 handler for non-interactive use effectively calls ‘q("no", 1,
 FALSE)’ and returns error code 1.  Error status 2 is used for R
 ‘suicide’, that is a catastrophic failure, and other small numbers
 are used by specific ports for initialization failures.  It is
 recommended that users choose statuses of 10 or more.

Related questions

break/exit script

I have a program that does some data analysis and is a few hundred lines long. Very early on in the program, I want to do some quality control and if there is not enough data, I want the program …

Read More
Remove rows with all or some NAs (missing values) in data.frame

I'd like to remove the lines in this data frame that: a) contain NAs across all columns. Below is my example data frame. gene hsap mmul mmus rnor cfam 1 ENSG00000208234 0 NA NA NA NA 2 ENSG00000199674 0 2 2 2 2 3 ENSG00000221622 0 NA NA NA NA 4 …

Read More
Drop data frame columns by name

I have a number of columns that I would like to remove from a data frame. I know that we can delete them individually using something like: df$x <- NULL But I was hoping to do this with …

Read More