[R] Howto store objects in a matrix or in an array

[Lars Feistner]

Hello,

i am working with the R.oo package. I want to store objects (instances 
of classes) in a n-dimensional array.
I tried this:

t <- array(list(),dim=c(8,8))
t[1,1] <- someObject
print(t[1,1])  results in:
[[1]]
[1] NA

the same with any S4 classes
setClass("track,representation(x="numeric",y="numeric"))
t1 <- new("track",x=1:5,y=5:10)
t[1,1] <- t1
Error in "[<-"(`*tmp*`, 1, 1, value = t1) :
        nothing to replace with

Is there any chance not to use a list in list construction?

Sincerly
Lars Feistner

-- 
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Lars Feistner                                   feistner at justis.de

Untere Neckarstr 32                             Tel:  +49 6221 8935279
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