formula for days between completed meetings

[cm]

Here's the deal. I have 10 meeting dates (some may be blank) and 10 columns
beside each that are either blank (meaning completed) or have the word
'Missed', as such:

A B C D E
1/2/09 (blank) 1/4/09 Missed 1/5/09 (blank) etc etc

Too many to use nested IFs.

I have been asked to calculate the average days between non-missed meetings.
Some of the meeting date cells will be blank. I would appreciate any advice.

 

[muddan madhu]

do we consider end date as 10th column date or Col A & Col C dates.

 

[ryguy7272]

Sounds like a task for a Pivot Table:
http://peltiertech.com/Excel/Pivots/pivottables.htm
http://www.babeled.com/2008/07/18/excel-pivot-table-tutorial-wizard-usage-and-basic-manipulation/

HTH,
Ryan---

 

[cm]

end date would be the last date that is filled in. so if the person had 10
meetings scheduled, all 10 would have a value. if the person had only 4
meetings scheduled, there would only be 4 values.

 

[muddan madhu]

use this User Defined Function

right click on sheet name, click view code, insert module paste the
below code,
Go to excel sheet put formula as =Avg(A1:K1)

Let me know errors, if any

Function Avg(Inputvalue As Range)
Dim cell As Range
For Each cell In Inputvalue
If cell.Value = "missed" Then
result = cell.Offset(0, -1).Value + result
counter = counter + 1
End If
Next cell
With Application.WorksheetFunction
X = .Count(Inputvalue)
y = .Sum(Inputvalue)
Z = y - output
z1 = X - counter
End With
Avg = Z / z1
End Function