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Barb Reinhardt
 
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http://peltiertech.com/Excel/Charts/axes.html#StakCht

"frances" wrote in message
...
I would like to know how to plot multiple sets of data on a scatter graph

for
example i have 3 sets of data for three types of lighting systems, red,

green
and blue i want to plot the voltage againt the current, and i want all the
data on one graph so i can compare them, how do i do it?