Hello All:

If I do have:

x = (2, 4, 5, 5, 6, 4, 5, 2, 1)
y = (9, 11.5, 12.5, 13, 14, 19, 20, 21, 22)

I wanted to find a simple function in R which calculates the averages of X
and Y for every 4 unit increase of Y. The results should look like:

x = (4, 6, 3)               #where (2+ 4+ 5+ 5)/ 4 = 4 and ...
y = (12, 14, 20.5)      #where (9+11.5+12.5+13)/ 4 = 12 and ...

Thanks,
Mohsen

	[[alternative HTML version deleted]]

