[R] Using loop numbers in write.csv

Economics Guy economics.guy at gmail.com
Thu Mar 13 18:07:21 CET 2008


This is a question I have wanted to ask for a while but hesitated
because I was sut sure I would find the answer on my own, but as of
yet...no dice.

1) Is there a way to use the loop number in naming things in R.
Specifically I have  a simulation that has two loops. I would like to
be able to write out the results to a csv file after each iteration.

something like:


        for (i in 1:10){
        	
        	exampleMatrix <-  matrix(runif(25, 0, 1),5, 5)
        	
        	write.csv(exampleMatrix, file = "resultsMatrix_i.csv")
        	
        	}

Where I would get 10 csv files named resultsMatrix_1, resultsMatrix_2
... resultsMatrix_10.


2) On a similar note is there a way to use the loop number when naming things.

something like:


        for (i in 1:10){
        	
        	exampleMatrix_i <-  matrix(runif(25, 0, 1),5, 5)
        	
        	}

Where I would then have 10 matrices in memory with the names
exampleMatrix_1, exampleMatrix_2 ... exampleMatrix_10.

Thanks,

EG



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