Hi Elham,
The error message is pretty explicit. Check your dataset for missing values.
Jim
On Thu, Nov 23, 2017 at 6:14 AM, Elham Fakharizade via R-help
<r-help@r-project.org> wrote:
>
> Hello DearI used modifiedmk package for trend analyses.this is my script
> require(modifiedmk)X1<-read.table("c:/elham/first
> article/r/Spring_NDVI-1.txt",skip=2,header=FALSE)d=dim(X1)
> outMK<-matrix(-999,nrow=4,ncol=d[2])for (c in
> 1:d[2]){MK<-tfpwmk(X1[,c])outMK[1,c]<-getElement(MK,"S")outMK[2,c]<-getElement(MK,"Var(S)")outMK[3,c]<-getElement(MK,"Sen's
> Slope")outMK[4,c]<-getElement(MK,"P-value")} unfortunetally I got this error:
> Error in if (S == 0) { : missing value where TRUE/FALSE needed
> would you please help me to solve itSincerely yoursElham
>
>
>
> [[alternative HTML version deleted]]
>
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