Many thanks, one additional question, I want to manually
set the X & Y ranges which I can do, but I also want to
put tramlines on the graph, these are straight lines and
dictate the bounds of the ratio, if the result is within
the upper and lower tram lines then the ratio is
sufficient to react to completion, this is a kind of
cross between a normal line graph and the Scatter graph
you mention, is it possible to combine these two types of
graph ?


-----Original Message-----
Thanks, Don, for the plug. But I think I'll give Neil a
brief intro
right here.

Put your A values in one column (how about A?), and the
B values in the
next column (B). Select a single cell in the range of
data, or select
the entire range to be plotted. Run the chart wizard,
either from the
button that looks like a little column chart, or from
Chart on the
Insert menu. In step 1 of the chart wizard, select one
of the XY
Scatter chart types (fifth choice on the left), not the
Line chart
(third choice). Follow along with whatever
embellishments you want, or
set them later.

Sample data:

10 8
9 7
3 3
1 1.5
0.5 0.5

- Jon
-------
Jon Peltier, Microsoft Excel MVP
http://www.geocities.com/jonpeltier/Excel/index.html
_______


Neil wrote:

Hi, I have two raw materials A & B, I measure the
amount
of each of them during a reaction. If the ratio of A:B
is
ok the reaction will proceed with no further additions
of
either raw material, I want to generate a tram line
graph
that shows the aging of the reaction. "A" would be
along
the bottom and "B" up the side, I would have two
columns
of reation results, each time I would measure both A &
B.