[R] Error in from:to : NA/NaN argument

[David Winsemius]

On Apr 20, 2010, at 3:54 PM, cobbler_squad wrote:

>
> Hello R gurus,
>
> I am having difficulties running a chunk of code that I otherwise  
> thought
> was correct..
>
>> if (lower < max(length(IC_peaks),length(IC_valleys))) {
> + valley_index <- IC_valleys[lower+1]
> + for (i in seq(peak_index,valley_index-1)) {
> + IC_peaks_and_valleys <- c(IC_peaks_and_valleys, "v")
> + }
> + }
> Error in from:to : NA/NaN argument

Perhaps an error in you seq() call which has from and to arguments.  
What do you get with this:

str(peak_index)
str(valley_index)

>
> I can not pin point the issue and if you have any suggestions I would
> greatly appreciate them. If more code is needed to figure out the  
> problem, I
> will post it right away.
>
> Thank you all.
>
-- 

David Winsemius, MD
West Hartford, CT