R help - Nov 2011 - function that load variables

Dear all,
I have saved few variable names into local files,
I wanted to make a function that load this files and "generates" the
variable names into my working environment. I have tried to do that as a
function but my problem is 

that this function does not return the variable names


load_data<-function(path,Reload=FALSE){

    if (Reload==TRUE){
     
      print("Loading results")

      # FirstSet
      load(file=paste(path,'first',sep=""))
      first<-Set

      # SecondSet
      load(file=paste(path,'second',sep=""))
      second<-Set

..................(part omittted here)

      save( first, second,....(part omitted here)...,    
file=paste(path,'Results',sep=""))
    }
    
    return (load(file=paste(path,'Results',sep="")))

}

so my idea was the following:
I call the function and it retuns the values first,second,... loaded into the
current working space.
If I want to refresh them, something has changed to the firstDataSet I set the
function's variable Reload=True and thus all the data are refreshed.
The problem is not that the return statement I ahve at the end of the function
does not return the loaded variable to the working environment but only the
status of the load command.

Do you know how I can change that so my function returns also Loaded Variable
names to the environment?

Alex
	[[alternative HTML version deleted]]

Perhaps you mean to use

load(...., envir = .GlobalEnv)

Currently you load up the variables in the function environment but
then they are thrown away when the function ends.

Michael

On Mon, Nov 7, 2011 at 8:40 AM, Alaios <alaios at yahoo.com>
wrote:
> Dear all,
> I have saved few variable names into local files,
> I wanted to make a function that load this files and "generates"
the variable names into my working environment. I have tried to do that as a
function but my problem is
>
> that this function does not return the variable names
>
>
> load_data<-function(path,Reload=FALSE){
>
> ??? if (Reload==TRUE){
>
> ??? ? print("Loading results")
>
> ??? ? # FirstSet
> ??? ? load(file=paste(path,'first',sep=""))
> ??? ? first<-Set
>
> ??? ? # SecondSet
> ??? ? load(file=paste(path,'second',sep=""))
> ??? ? second<-Set
>
> ..................(part omittted here)
>
> ??? ? save( first, second,....(part omitted here)...,????
file=paste(path,'Results',sep=""))
> ??? }
>
> ??? return (load(file=paste(path,'Results',sep="")))
>
> }
>
> so my idea was the following:
> I call the function and it retuns the values first,second,... loaded into
the current working space.
> If I want to refresh them, something has changed to the firstDataSet I set
the function's variable Reload=True and thus all the data are refreshed.
> The problem is not that the return statement I ahve at the end of the
function does not return the loaded variable to the working environment but only
the status of the load command.
>
> Do you know how I can change that so my function returns also Loaded
Variable names to the environment?
>
> Alex
> ? ? ? ?[[alternative HTML version deleted]]
>
>
> ______________________________________________
> R-help at 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.
>
>