Re: breaking a loop in R

Hello,

Please could someone explain

break and next??

Is there a way to break a loop that is not the innermost loop??

for example:
#=========================
dim A = 1000 x 3
dim B = 2000 x 3

for (a in 1:1000){
    for (b in 1:2000){
         expr = intersect(A[a,1]:A[a,2],B[b,1]:B[b,2])
         if (!is.na(expr[1])){
             indx = which(expr[1] >= A[,2])
             if (length(indx) > 1){
                for(c in 1:length(indx))
                     X[a,1] = paste(.....)
                     .....
             }else {
                 X[a,1] = A[indx, 3]
             }
          }            
          ###BREAK - Here does not work
                NEXT # am not sure if this is doing what I want it to??
      }
}      
#=============================

Any help and advice would be much appreciated!

Many Thanks,
NS