=if(A1,A1*14,NA()) should cure it on the chart.

If you don't want the NA# to show in your data sheet, you can hide it with
conditional formatting.
--
David Biddulph

"Dave Jones" wrote in message
...
I have a value in Column A and a calculated value in column B
=if(A1,A1*14,"")

I want to plot column B on a chart, however where there is no data in A
then
the chart plots B as a zero, but I don't want it to plot anything if there
is no data. Can anyone help this relative novice?

Thanks in anticipation
Dave