jw wrote:
Hi,

Thank you for your response! I had tried exactly what
you suggested, but I do not want the columns to chart
from the top.

Our data is best represented when the scatter dots
overlie the precipitation bars. My other charts have
Percent Cover on the primary axis and Precipitation on
the secondary axis only because I set the scale to be the
same on each axis (kind of cheating). This will not work
with the current charts I am fixing.

Any more ideas?

I think we may have a misunderstanding here. I think the basis of the
misunderstanding is the assumption that the secondary axes are on the
right/top of the screen, which is not necessarily true. Allow me to restate
the problem so you can correct me if I have it wrong.

You want one x-axis, preferably at the bottom of the screen. The x-axis
data for all series is the same and it is uniformly spaced so that a value
and category axis looks the same. You want two y-axes, the left y-axis
being percent cover and the right y-axis being precipitation.

Did I get that right? If so, you can move the primary y-axis to the right
and the secondary y-axis to the left side of your chart (sort of a
flipflop). You can also flipflop the x-axes. The basic idea is to select
an axis, Format | Selected axis | Scale tab, change the value next to "(X or
Y) axis crosses at:." More details if you need it.

Dave
dvt at psu dot edu