R help - Nov 2010 - Creating a list to store output objects from a recursive loop

Dear Group,

I am having a function that I am running in a loop that generated two
results for each loop

The result1 is a zoo object
The result2 is a data frame

Now I want to put both of them in a list or some structure ... that I can
access or output to a file after the loop is done.

For e.g.

for (i in 1:20){
	niceFunction(x[i],i)
}

niceFunction (x,i) {
	
	result1 = someOperations() #zoo object
	result2 = someOperations() #data.frame

	OutputObj[i,1]=result1
	OutputObj[i,2]=result2

}

How can I go about this?

Thanks,
S

Figured this out this ways I think

outPut <- list(list(result1),list(result2))

-----Original Message-----
From: Santosh Srinivas [mailto:santosh.srinivas at gmail.com] 
Sent: 09 November 2010 14:21
To: 'r-help at r-project.org'
Subject: Creating a list to store output objects from a recursive loop

Dear Group,

I am having a function that I am running in a loop that generated two
results for each loop

The result1 is a zoo object
The result2 is a data frame

Now I want to put both of them in a list or some structure ... that I can
access or output to a file after the loop is done.

For e.g.

for (i in 1:20){
	niceFunction(x[i],i)
}

niceFunction (x,i) {
	
	result1 = someOperations() #zoo object
	result2 = someOperations() #data.frame

	OutputObj[i,1]=result1
	OutputObj[i,2]=result2

}

How can I go about this?

Thanks,
S

On 09.11.2010 09:51, Santosh Srinivas wrote:
> Dear Group,
>
> I am having a function that I am running in a loop that generated two
> results for each loop
>
> The result1 is a zoo object
> The result2 is a data frame
>
> Now I want to put both of them in a list
Just generate a list of lists, the latter list each containing one zoo 
object and 1 data.frame.

Or use a list with dim attributes, so that it is like the matrix you 
gave below.

Uwe Ligges


> or some structure ... that I can
> access or output to a file after the loop is done.
>
> For e.g.
>
> for (i in 1:20){
> 	niceFunction(x[i],i)
> }
>
> niceFunction (x,i) {
> 	
> 	result1 = someOperations() #zoo object
> 	result2 = someOperations() #data.frame
>
> 	OutputObj[i,1]=result1
> 	OutputObj[i,2]=result2
>
> }
>
> How can I go about this?
>
> Thanks,
> S
>
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