How can I display upper and lower control limits as a line?

[Guest]

How can I display upper and lower control limits as solid lines on a chart?

 

[Andy Pope]

Hi,

The following pages have examples of how to add lines.

http://peltiertech.com/Excel/Charts/AddLine.html
http://tushar-mehta.com/excel/charts/straight_lines/index.html
http://www.andypope.info/charts/averageline.htm
http://www.processtrends.com/pg_charts_horizontal_line.htm

Cheers
Andy