Renaud_D

This link shows you how to add a horizontal line to your chart.

http://processtrends.com/pg_charts_horizontal_line.htm

Kelly




"Renaud_D" wrote in message
...
Hello,
How can I display a constant value as a line in a chart? For example,
let's
assume that I track a variable x across time with n values. In the
spreadsheet, I calculated the average of the n observations. I'd like to
display this average value as a line in the chart so that it is easy to
visually relate any point in the date serie to this average value.
thanks in advance for any hint...