[R] r help: source-function is very slow

Duncan Murdoch murdoch.duncan at gmail.com
Thu Jan 19 15:16:15 CET 2012

On 12-01-19 8:25 AM, Jos van Nijnatten wrote:
> Hello everybody,
> I noticed a performance problem when using the source-function in R.
> When I try to source an r script that is located in the same directory
> as the script I execute via command line ('R -f file.r' contents
> 'source("someOtherScript.r")') it's very fast. But if I put
> 'someOtherScript.r' in another directory (say ../../R) R takes moments,
> if not minutes to locate and load the script. Is there another way to do
> this that is not slow?

R uses the same method in both instances.  If there's a difference in 
timing, it's almost certainly because there's something going on with 
your OS or file system.

Duncan Murdoch

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