R help - Jul 2011 - Store elements in a list in a triple for loop

Hi, 

I have a triple loop that goes through all elements of a list 
Lst[[k]][[i,j]] and I want to pick only elements of  Lst[[k]][[i,j]]  > 0.4
or any value. Then I want to store the values of Lst[[k]][[i,j]] together
with their i,j,k values in another list. Say I have Lst[[2]][[4,7]] = 0.6, I
want to store it as a row 

     [,1] [,2] [,3], [,4]
         2   4   7      0.6
                    
             
I tried using  VoxCorr <- list()  and then inside the loop
                    VoxCorr[i,i,k] <- list(matrix = matrix (c(k,i ,j,
Lst[[k]][[i,j]]),  nrow = 1, ncol = 4))        

Which gives an error. It should be something pretty simple but I don't know
en exact syntax I could use to do it. 
Thanks,

Here is the full loop code: 


VoxCorr <- list()    
     
   for (i in 1:ncol(aaN))
          {
               for (j in 1:ncol(bbN))
                {
                      for (k in 1:Nlags)


                {
                 if ( Lst[[k]][[i,j]] >=CorrMin ||  Lst[[k]][[i,j]] 
<=CorrMin )
               {
                       VoxCorr[i,i,k] <- list(matrix = matrix (c(k,i ,j,
                       Lst[[k]][[i,j]]),  nrow = 1, ncol = 4))
                 }
   }
                }

            }
   
return (VoxCorr)




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