This is one of the issues that has led data viz expert Stephen Few to swear
off dual axis charts in "Dual-Scaled Axes in Graphs-Are They Ever the Best
Solution?"
(
http://www.perceptualedge.com/articl...caled_axes.pdf).
You are better off with two separate charts, one for each of the disparate
data sets. Or you could make a panel chart which shows each data set in its
own panel of a single chart:
http://peltiertech.com/Excel/ChartsH...venScales.html
If you still insist on saddling a single chart with two incompatible scales,
you could try this technique to coerce the two scales into a precarious
balance:
http://peltiertech.com/Excel/Charts/AlignXon2Ys.html
- Jon
-------
Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
Peltier Technical Services, Inc. -
http://PeltierTech.com
_______
"BorisS" <(E-Mail Removed)> wrote in message
news:992CF0AE-4E8E-47E0-BB5D-(E-Mail Removed)...
>I have a 2-axis bar/line chart, and the bar values (primary) go from 0 to
> 18,000, while the secondary goes -4% to 15%. I am having trouble forcing
> the
> axes to both cross at a horizontal 0 (which implies that the primary axis
> would have to either start negative and cross at 0 (not preferred, because
> logically won't make sense to have a negative number possible for this
> access) or have the primary start at 0 and go up, while the secondary
> starts
> at negative (below where the primary is starting to be drawn) and then
> hits
> at zero.
>
> cannot figure out any way to do this. Any help?
> --
> Boris