thanks for the prompt responses - unfortunately I have formulas in the empty
cells so the "Hidden and Empty Cells" instruction still interpolates between
the values (for my chart to work I need to leave gaps in the lines on the
charts, so that you can see which sections of the underlying data fit the
conditions and which ones don't)

"Bernard Liengme" wrote:

Agreed but the OP seems to have really empty cells (missing data)
But I should have added the formula proviso for the sake of others
Cheers
--
Bernard


"Jon Peltier" wrote in message
...
Bernard -

Don't forget that the "Empty Cells" setting applies only to empty cells,
not cells containing "" or #N/A.

- Jon
-------
Jon Peltier
Peltier Technical Services, Inc.
http://peltiertech.com/



Bernard Liengme wrote:
Have your tried enter =NA() in the blank cells? This displays as #N/A
which the chart engine ignores.
Also there is a chart option to specify that blanks are to be ignored and
points are to be joined.
In XL2003; click chart; open Tools | Options | Chart and locate area
specifying how blanks are to be treated
In XL2007: Chart Tools Design; Data group; Select Data tool -- at bottom
of dialog box "Hidden and Empty Cells"
best wishes