R help - May 2011 - Saving Values in a Vector from a For Loop

Hi, 
I have a created a function, but now I need to call it about a hundred times
and store the results as a vector.
I think doing a for loop would work, but I cant work out how to save the
values generated from the function as a vector. Any ideas?
Thanks. 

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Hi,

On Wed, May 4, 2011 at 10:19 AM, blutack <x-jess-h-x at hotmail.co.uk>
wrote:
> Hi,
> I have a created a function, but now I need to call it about a hundred
times
> and store the results as a vector.
> I think doing a for loop would work, but I cant work out how to save the
> values generated from the function as a vector. Any ideas?
R> n.times <- 100
R> result <- numeric(n.times) ## assuming your function returns numeric
R> for (i in 1:n.times) {
  result[i] <- myfunction(...)
}

or

R> result <- replicate(n.times, myfunction(...))

or if you need the index

R> result <- sapply(seq(n.times), function(i) myfunction(i, ...))

I guess you get the idea ...

-- 
Steve Lianoglou
Graduate Student: Computational Systems Biology
?| Memorial Sloan-Kettering Cancer Center
?| Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact