You can manually hide a legend entry by selecting it (select the legend
first, then the entry, using two single clicks) and pressing Delete. To
get it back you have to delete the entire legend and then add it back.

You can't automatically adjust the legend based on a formula. You can
filter the data, and any hidden data isn't plotted, either as a series
or as a legend entry. But this isn't automatic either.

You could write a macro which hides and restores the legend based on the
visibility of the series.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
_______


Richard Ahlvin wrote:

How do I hide/show a series on a chart legend (scatter plot.)
I tried a null string (""), but the trace still shows. I also tried #N/A.
But it then shows "#N/A"; the same with function: NA(). What I am trying to
do is to have a control button to show or hide a series from the chart. I
can set all the series values to #N/A which hides it, but I am having
trouble trying to hide the legend for the series. I also tried an "if"
function in the chart-series dialog, but It evidently will only accept a
cell pointer.