[R] Question about error

[DAEYOUNG KIM]

Dear Sir..

I am a graduate student in Pennstate.
I have some problem in using R.
At first, I used image function under R.(I loaded the packages GeoR, geoRglm,
and coda)
When I performed the following command 
"image(try4,loc=blue.grid,values.to.plot="median",col=gray(seq(1,0.1,l=9)),breaks=seq(9,89,l=10),xlab="X",ylab="Y")"

I got some error message "Error in inout(pts = locations, ploy = borders) :
subscript out of bounds "
But I had no idea about this error.
Would you give me some information or which part should I check again?

Have a nice day.
Sincerely
Daeyoung Kim