Here are some tutorials:

Add a Line to a Column or Line Chart
http://peltiertech.com/Excel/Charts/AddLine.html

Run Chart with Mean and Standard Deviation Lines
http://peltiertech.com/Excel/Charts/RunChtLines.html

- Jon
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Jon Peltier
Peltier Technical Services, Inc.
http://peltiertech.com/



Turbojet wrote:
I have several quality charts that I do monthly. How can I get the the
upper, lower and center lines to appear at a specific data point (number) as
part of hte chart format. In other words, withiout having to use the Draw
Line tool each time? Excel 2003.