I have just put up a file for you at:-

http://www.pierrefondes.com/

It is item number 61 towards the top of my home page.

This is one example on one way in which to do what you want.

There are, of course, various ways to do this depending upon your
requirements.

Please hit Yes if my comments have helped.

Thanks.



"GuyMac" wrote:

I need to produce within the same graph two y scales one on the right and one
on the left