[R] Simple control structure issue

[William Dunlap]

R is a case-sensitive language: 'if' (lowercase 'i') is a keyword and 'If'
(uppercase 'I') is not.

Bill Dunlap
TIBCO Software
wdunlap tibco.com

On Fri, Jun 23, 2017 at 1:00 PM, Michael Ashton <
m.ashton at enduringinvestments.com> wrote:

> I am having a hard time with 'next'. I come from the "sloppy" school that
> learned BASIC with Goto.
>
> Conceptually next seems pretty straightforward. I just can't get it to
> work correctly in my code. Here's a stripped down version:
>
> WhichRunNow<-"Daily"
> Cnums=c(0,1,"2b3")
> Cpers=c("Daily","Daily","Weekly")
>
> for (j in (1:length(Cnums))) {
>      If (!identical(Cpers[j],WhichRunNow)){
>            next
>            }
>      print(j)
> }
>
> So, this should print the number "3", which it does. It prints 3 because
> "WhichRunNow" is "Daily", and only for j=3 is Cpers[j] not identical to
> "Daily". But R seems very unhappy with how it gets there:
>
> > WhichRunNow<-"Daily"
> > Cnums=c(0,1,"2b3")
> > Cpers=c("Daily","Daily","Weekly")
> >
> > for (j in (1:length(Cnums))) {
> + If (!identical(Cpers[j],WhichRunNow)){
> Error: unexpected '{' in:
> "for (j in (1:length(Cnums))) {
> If (!identical(Cpers[j],WhichRunNow)){"
> > next
> Error: no loop for break/next, jumping to top level
> > }
> Error: unexpected '}' in "}"
> > print(j)
> [1] 3
> > }
> Error: unexpected '}' in "}"
> >
>
> Obviously something with my syntax, but I can't see what I'm doing wrong!
>
>
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>
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