I have a single column of cyclic generated data. The cycles are over time but
are not always consistent . Though it is very easy to generate a graph of the
cycles, I am trying to pull out ONLY the minimums and maximums of each cycle
for graphing, each its own data series. The number of cycles can range from
10 to 10,000 and and may have as few as 10 points per cycle to as many as
1000 points per cycle so data points can range 100 points to 10,000,000
points from which I need to pull all the minimums and all the maximums
(representing the peaks and valleys of each cycle.

I struggling with a way to do this and I would greatly appreciate any help
anyone can be.

THANKS!!
--
Rick