[R-sig-Geo] Scale Bar

[PUJAN RAJ REGMI]

Dear,
I followed the instruction given by Roger. But i got the following error 
message;
coordinates(A) <- c("x", "y")> gridded(A) <- TRUE> 
greenchannel<-matrix(A[,3],nrow=155,ncol=191,byrow=TRUE)Error in as.vector(x, 
mode) : cannot coerce to 
vectorredchannel<-matrix(A[,4],nrow=155,ncol=191,byrow=TRUE)Error in 
as.vector(x, mode) : cannot coerce to vector> 
nearinfraredchannel<-matrix(A[,5],nrow=155,ncol=191,byrow=TRUE)Error in 
`[.data.frame`([EMAIL PROTECTED], i, j, ..., drop = FALSE) :   undefined 
columns selected> 
midinfraredchannel<-matrix(A[,6],nrow=155,ncol=191,byrow=TRUE)Error in 
`[.data.frame`([EMAIL PROTECTED], i, j, ..., drop = FALSE) :   undefined 
columns selectedThe image plot was black background with x and y axis values.
Any help?
Thanking you
Pujan
_________________________________________________________________
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