I am trying to write a VBA code that will average the difference of of
arrays ignoring the rows where one array is missing data. In th
example below Jul 4 Jul 9th and July 12 and July 14, need to b
ignored. If this can be done in VBA or within a XL formula, an
solution is welcome.

Thanks in advanced.


A B
2-Jul-04 3 4
3-Jul-04 4 5
4-Jul-04 _ 3
5-Jul-04 6 4
6-Jul-04 7 1
7-Jul-04 77 23
8-Jul-04 3 2
9-Jul-04 5 _
10-Jul-04 5 4
11-Jul-04 45 35
12-Jul-04 _ 5
13-Jul-04 1 2
14-Jul-04 1 _

incorrect differece avg -- 5.307692308
correct difference avg -- 7.88888888

--
RobPaolill
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