[R] Dynamic Variable Names?

[Bert Gunter]

Use lists.

e.g.
results <- lapply(1:10,function(i,...){ do stufff } )

will give you a list of results that you can name if you wish to.

You can also explicitly fill the list with the loop if you don't like
lapply -- some folks don't like anonymous functions, for example,
along the lines of:

results <- vector("list:,10)
for(i in 1:10) results[[i]] <- {whatever(i)}

but my aesthetic sense is somehow more offended by this.

Cheers,
Bert

On Sat, Apr 14, 2012 at 6:16 AM, johnny123 <johnny123 at dispostable.com> wrote:
> Hi, I've written some R code that runs through a loop a certain number of
> times.  I want to save the output of each loop under a new variable name,
> but I seem unable to do so.
>
> I have a [10,1] matrix of stock tickers, and I want to save the output to
> the variable name: paste(matrix[i,1],"rets",sep="").
> Eg: AAPLrets would be the name of the variable that I would save the output
> to.
> Ideally after the script runs it would have saved 10 output to 10 different
> variable names.
> Any suggestions on how to do so?
>
> Thanks.
>
>
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-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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