Indexing in alternate runs of a loop

Question

I would like to send data out of a for loop only in alternate runs like i=1,3,5,7,9....etc...But i want to use the indexing feature to send the data out of the loop..so any idea how this can be done..or do i need to store in an array and then send the whole array oout of the loop at the end of the loop?

Answer 1

Not sure I completely understand. Is this data supposed to be used while the loop is running? If so, you need to use some other mechanism for getting the data out of the loop. The mechanism depends on who is the consumer of the data. You have lots of options: local variables, global variables, shared variables, queues, notifiers, etc. One should not be automatically discounted simply because somebody has a personal dislike of them. Although I'm sure at this point you'll get the usual flurry of local variable haters and global variable haters. Cue the bandwagons!
If the data is to be used after the loop completes, then you can simply use a shift register to populate the final array. The best way to do this is to pre-allocate the array ahead of time and use Replace Array Subset inside the loop within a case structure that's driven by the loop iteration being even or odd.