[R] for loop question
Duncan Murdoch
murdoch at stats.uwo.ca
Tue Sep 11 22:48:47 CEST 2001
On Tue, 11 Sep 2001 12:54:49 -0600, you wrote in message
<9153F74610B7D311B83900902771C8710A4CE336 at axcs07.cos.agilent.com>:
>In the windows version of R (1.3.0) is the following a bug, a
>known problem, or expected behavior:
>
> > for (i in 1:2) {
> + for (j in i+1:3) {
> + print(j)
> + }
> + }
> [1] 2
> [1] 3
> [1] 4 ????
> [1] 3
> [1] 4 ????
> [1] 5 ????
I think you're fooled by operator precedence. The expression "i+1:3"
is equivalent to "i + (1:3)", i.e. c(i+1, i+2, i+3).
Duncan Murdoch
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