R in batch mode packages loading question
On 07/11/2011 5:49 AM, PALMIER Patrick (Responsable de groupe) - CETE
NP/TM/ST wrote:
Hello, I use R in batch mode. Each time, I execute a script, R is loading each packages I need in my script. That's Ok But, I had to execute many scripts , and each time R is re-loading the corresponding packages, which take to much time Is it possible ask R to load the packages only once, and stay in memory in background for further scripts, which would avoid to load the packages in each script, or if you have another solution that need to only load packages once in the first scripts, so that further scripts do not need to load these packages too.
Write one script that has a sequence of calls to source() to run the other scripts. You'll need to be careful that unintentional leftover objects and settings from one script don't affect the others; you may also want to use the "echo=TRUE" option when you source, so you see the commands as they are executed. Duncan Murdoch