Duncan Murdoch <murdoch.dun...@gmail.com> writes:
>> for ( i in 1:length(var1)){
>
> This is generally a bad idea: if length(var1) == 0, it does the wrong
> thing, since 1:0 is c(1L, 0L). Better to use
>
> for ( i in seq_along(var1) ) {
>
granted. One should check the validity of their variables before using
them but I argue that seq_along does not protect you from the
unexpected behaviour.
If the length of var1 should not be 0 so
stopifnot(length(var)==0)
for ( i in 1:length(var1)){
elem1 <-var1[i]
elem2 <- var2[i]
}
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