[R] Error .. missing value where TRUE/FALSE needed
jim holtman
jholtman at gmail.com
Sun Jan 6 14:32:29 CET 2008
When the error occurs, valueDiff is NA:
Error in if ((seedCount <= seedNumber) && (valueDiff > sup)) { :
missing value where TRUE/FALSE needed
> valueDiff
[1] NA
>
Look at your loop; you are going through 100 times so on the last time
you are trying to access: fcsPar[k+1] which is the 101th entry which
is NA. Your program has a bug in it.
On Jan 6, 2008 1:22 AM, Nicholas Crosbie <crosbienicholas at yahoo.com.au> wrote:
> Can any explain the following error:
>
> Error in if ((seedCount <= seedNumber) && (valueDiff >
> sup)) { :
> missing value where TRUE/FALSE needed
>
> which I get upon running this script:
>
> seedNumber <- 10
> seeds <- array(dim = seedNumber)
> seedCount <- 1
>
> maxValue <- 100
> sup <- maxValue / 2
>
> fcsPar <- array(as.integer(rnorm(100, 50, 10)))
>
> while (seedCount <= seedNumber) {
> for(k in 1:100) {
> valueDiff <- abs(fcsPar[k] - fcsPar[k+1])
> if((seedCount <= seedNumber) && (valueDiff >
> sup)) { #error
> seeds[seedCount] <- fcsPar[k]
> seedCount <- seedCount + 1
> }
> }
> sup <- sup / 2
> }
>
>
> many thanks.
>
>
>
>
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--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
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