[R] how does while work

Giovanni Petris GPetris at uark.edu
Wed Mar 20 22:10:52 CET 2002


assuming you enter the while loop with a value of x less than 100, 
the for loop sets, in its last iteration, a=x=101 (which is the last
value `i' takes). at this point you also exit the while loop, since
x<100 is false.

Giovanni

> From: "jimi adams" <imij at columbus.rr.com>
> Date: Wed, 20 Mar 2002 14:39:13 -0500
> X-Priority: 3
> X-MSMail-Priority: Normal
> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000
> Sender: owner-r-help at stat.math.ethz.ch
> Precedence: SfS-bulk
> Content-Type: text/plain;
> 	charset="iso-8859-1"
> Content-Length: 1205
> 
> i am having some problems with a program that i am writing and i think that
> knowing how the while command works will help me to figure out where i am
> going wrong
> *when do you get kicked out of a while loop?*
> (i.e., in the following example  what would the final value of 'a' be?) i
> thought it would be 99 but running it in R i get 101 (and 101 for x too!)
> 
> while (x <100) {
>   for (i in 1:101) {
>     i -> x
>     x -> a
>   }
> }
> 
> while this is a crude example, it is the basic form of what i am trying to
> do, and i am guessing that while is not what i am looking for...
> 
> jimi adams
> Department of Sociology
> The Ohio State University
> 300 Bricker Hall
> 190 N Oval Mall
> Columbus, OH 43210-1353
> 614-688-4261
> 
> our mind has a remarkable ability to think of contents as being independent
> of the act of thinking
>                                             -georg simmel
> 
> 
> -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
> 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
> _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
> 

-- 

 __________________________________________________
[                                                  ]
[ Giovanni Petris                 GPetris at uark.edu ]
[ Department of Mathematical Sciences              ]
[ University of Arkansas - Fayetteville, AR 72701  ]
[ Ph: (479) 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
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._



More information about the R-help mailing list