Dear R users,
I have two simple questions here, and hope someone can help me on this. Thanks
in advance.
1.
I have a list object lst=list(a1=matrix(rnorm(4),2,2),
a2=matrix(rnorm(4),2,2),a3=matrix(rnorm(4),2,2)). Here I only use three
elements for illustration, and in fact the length of lst, n, is unknown in
advance. I want to define an object for each element of this lst, and the
objects have names like "object1", "object2",...,"objectn". I could use a loop
like the following:
for (i in 1:length(lst)){
assign(paste("object",i,sep=""),lst[[i]])
}
I wonder if there's a way to avoid this loop?
2.
I want to validate whether all of the "object"s have the same dimension, that
is, whether dim(object1)[1]==dim(object2)[1]==dim(object3)[1]&
dim(object1)[2]==dim(object2)[2]==dim(object3)[2] is true. How can I do that
easily since the length of lst is not fixed?
Thanks.
Wayne (Yanwei) Zhang
Ttatistical *esearch
> CNA
>
>
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