On Mar 3, 2011, at 10:12 AM, kparamas wrote:

Hi,

I am calling a function with different arguments to read different files and
want the results to be stored in
different matrices.

Ex:
cData1 = NULL
cData2 = NULL

readData = function(cData, start, end)
{

....
  cData = //reads from the file
}

I am calling the functions using
readData(cData1,1,3)
readData(cData2,4,7)

But After running the code, cData1 and cData2 are not getting updated.
Is there a way in R to do this?
You need to assign the results of the function to an R object in the global environment. At the moment calling readData() only creates the cData object in the environment of the function which then disappears after function completion.

Try :

cdata_1_1_3 <- readData(cData1,1,3)
cdata_2_4_7 <- readData(cData2,4,7)


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