I'm sure your question makes sense to you but by definition a peak has a
slope of zero. Or do you mean the slope of a curve that includes only
the peaks? If so, plot the peak values as a 2nd series. If that is a
straight line, the trendline (or the LINEST function) will give you the
slope.

--
Regards,

Tushar Mehta
www.tushar-mehta.com
Multi-disciplinary business expertise
+ Technology skills
= Optimal solution to your business problem
Recipient Microsoft MVP award 2000-2005

In article ,
says...
I have a graph with many peaks which are decreasing logarithmically and i
need to get the slope of these peaks ignoring the "Noise" which is below
these peaks.

Any suggestions