[R] storing matrix(variables) in loop
Márcio Resende
mresendeufv at yahoo.com.br
Mon Mar 15 15:44:37 CET 2010
Hello R-helpers,
I have the following code that works well,
b <-list()
for (i in 1:3){
a <- matrix(runif(1),3,3)
b[[i]] <- a
}
b
however, I need to do something similar with two loops and I was looking for
something that would look like
b <- list()
for (i in 1:3){
for (j in 1:4){
a <- matrix(runif(1),3,3)
b[[i,j]] <- a #but this doesn´t work
}
}
Anyway, I wanted "b" to loop like
[[i=1, j=1]] [[i=1, j=2]] (...)
a[i=1, j=1] a[i=1,j=2] (...)
[[i = 2, j=1]] (...)
a[i = 2, j = 1] (...)
(...)
Can anybody help me?
Thanks
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