Hi all, I have scripts that have one variable called 'output', the script creates a data frame and stores this data frame in 'output'. Then the data frame is written to disk. This is simple when working with a single script. However, as soon as one script calls other, variables overwrite each other.
Here a little example that fixes the problem for one particular case by using variables with different names: # # Script A, either called directly or from another script # outputA <- NULL getOutput <- function(){ return(outputA) } outputA <- "script A" # # Script B, includes and executes script A as part of its own # output <- NULL output <- "Script B" source("C:/data/poodle/coder/overwritingTest/scriptA.R") outputA <- getOutput() print(paste("Output script B:", output)) print(paste("Output script A:", outputA )) However, I simply want to ensure that script A's output does not interfere with the the one produced by script B without script B's need to know how A called its variable. I want script B to easily access the output of script A. What I would ideally need ( I think) is an OO approach. I was thinking that I could perhaps store a generic variable that is generated based on the script name (i.e. scriptA_output, scriptB_output) On Wed, Oct 6, 2010 at 1:24 PM, Greg Snow <greg.s...@imail.org> wrote: > Possible? Yes (as others have shown), advisable? No, see fortune(106), > fortune(236), and possibly fortune(181). > > What is your ultimate goal? Maybe we can help you find a better way. > > -- > Gregory (Greg) L. Snow Ph.D. > Statistical Data Center > Intermountain Healthcare > greg.s...@imail.org > 801.408.8111 > > >> -----Original Message----- >> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- >> project.org] On Behalf Of Ralf B >> Sent: Wednesday, October 06, 2010 10:32 AM >> To: r-help Mailing List >> Subject: [R] Create variable by name >> >> Can one create a variable through a function by name >> >> createVariable <- function(name) { >> outputVariable = name >> name <- NULL >> } >> >> after calling >> >> createVariable("myVar") >> >> I would like to have a variable myVar initialized with NULL in my >> environment. Is this possible? >> >> Ralf >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting- >> guide.html >> and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.