Excel does not support log scales that do not terminate at powers of ten,
but you can fake it by transforming your data and building a fake axis.
Tushar Mehta shows how on his web site. Browse to http://tushar-mehta.com
and look for the Flexible Log Axis.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
http://PeltierTech.com
_______


"Erik M." <Erik wrote in message
...
I'm plotting logarithmic data that stays in a relatively narrow range, so
I
need to set minimums and maximums on my y axis that are near each other
(e.g.
10 and 20). How do I do this in Excel? Is there a chart add-in that will
make this work for me?

I've been searching for an answer for years now, so any assistance would
be
greatly appreciated! :)

Thanks,
Erik