[R] How to subtract the counter i in for loop?

[Jeff Newmiller]

Use a while loop instead of a for loop. I don't think what you have coded makes any sense, but fighting the for loop over control of the indexing variable is a recipe for failure.
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Sent from my phone. Please excuse my brevity.

C W <tmrsg11 at gmail.com> wrote:

>Hi list,
>I am writing a for loop that looks like this:
>samples<-rep(NA,10)
>x <- rep(c(111, 225), 5)
>for(i in 1:10){
>    If(x[i]<200){
>         samples[i] <- x[i]
>     }else{
>     i=i-1
>    }
>}
>
>The problem is that the returning vector still contains NA,  I think
>the i
>in "else" is not getting subtracted.  How should I get it to work?
>
>Thanks,
>Mike
>
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>
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