Hi guys,
I am trying to replace all elements of earth that are equal to zero with their
corresponding elements in mars. I can do the replace with a bunch of for-loops,
but I don't think this is the R way of doing things.
my_list <- list( earth=array(c(0,0,45,0,0,45,0,45),dim=c(2,2,2)),
mars=array(c(8:1),dim=c(2,2,2)))
my_list
for (i in c(1:2)) {
for (j in c(1:2)) {
for (k in c(1:2)) {
if (my_list$earth[i,j,k] == 0) {
my_list$earth[i,j,k] <- my_list$mars[i,j,k]
}
}
}
}
my_list
Do you guys have any suggestions for getting rid of the ugly for-loops?
Many thanks,
Fernando Álvarez
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