And here's information about custom error bars:

http://peltiertech.com/Excel/ChartsHowTo/ErrorBars.html

- Jon
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Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
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"Andy Pope" wrote in message
...
Hi,

Here are some links on adding datum lines to charts.

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

Cheers
Andy

Charlie wrote:
Is it possible to plot mean values as points and to add both standard
errors and confidence limits in the chart?

--

Andy Pope, Microsoft MVP - Excel
http://www.andypope.info