[R] for loop question

[Giovanni Petris]

It seems the expected behavior to me, given that the : operator has
higher precedence than +. 

> j <- 1
> j+1:3
[1] 2 3 4

> From: "HEUMANN,JOHN (A-Loveland,ex1)" <john_heumann at agilent.com>
> Date: Tue, 11 Sep 2001 12:54:49 -0600
> Sender: owner-r-help at stat.math.ethz.ch
> Precedence: SfS-bulk
> Content-Type: text/plain;
> 	charset="ISO-8859-1"
> Content-Length: 1047
> 
> 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      ????
>  >
> 
> Conversely, the following behaves as expected:
> 
>  > for (i in 1:2) {
>  + k <- i+1
>  + for (j in k:3) {
>  + print(j)
>  + }
>  + }
>  [1] 2
>  [1] 3
>  [1] 3
>  >
> 
> This is under NT4, SP5 using a pre-compiled binary from CRAN.
> 
> Thanks,
> -jh-
> 

-- 

 __________________________________________________
[                                                  ]
[ Giovanni Petris                 GPetris at uark.edu ]
[ Department of Mathematical Sciences              ]
[ University of Arkansas - Fayetteville, AR 72701  ]
[ Ph: (501) 575-6324, 575-8630 (fax)               ]
[ http://definetti.uark.edu/~gpetris/              ]
[__________________________________________________]

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._