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Median function in Access calling Excel worksheetfuncti on, or change to any excel function on a query recordset

Here's a median function in access that you can call in any query. You
could change this to any excel function you wanted. Most people can
find the windows help file that says how to call an excel function but
don't know how to pass an array of the recordset they made into that
function. This uses GetRows that nicely creates an array that can be
passed into excel.

I have this data table for testing. The table name is TestData

Names Numbers
Charles 3
Henry 2.5
Henry 2
Henry 3
Henry 1
John 63
Ken 6
Ken 45
Ken 13
Lewis 5
Opi 9
Opi 45
Opi 9
Opi 36
Paul 1
Call in a query MyFunc: Median("TestDat a","Numbers","N ames"," ='Ken' ")
Public Function Median(Table As String, TgtField As String, LimField As
Variant, Criteria As Variant) As Double

Dim mySQL As String
Dim rst As Recordset
Dim N As Long ' number of records

On Error GoTo 10000
If IsNull(LimField ) Or IsNull(Criteria ) Then
mySQL = "SELECT " & TgtField & " FROM " & Table & ";"
mySQL = "SELECT " & TgtField & " FROM " & Table & " WHERE [" &
LimField & "] " & Criteria & "" & ";"
End If

Set rst = CurrentDb.OpenR ecordset(mySQL, dbOpenDynaset)
rst.MoveLast 'you need this to force access to actually load
all of them.
N = rst.RecordCount

rst.MoveFirst 'getrows defaults to getting rows from your current
position (bookmark) to number of rows you specify (N) in our case which
is the total number of records.
Median = Excel.Applicati on.Median(rst.G etRows(N)) 'You have to have
a reference to Microsoft Excel in your references in tools..referenc es

GoTo 20000

MsgBox "Error in-----" & mySQL

'other way of using excel
'Dim obj As Excel.Applicati on
' Set obj = CreateObject("E xcel.Applicatio n")
' MsgBox obj.Application .Median(1, 2, 5, 8, 12, 13)
' obj.Quit
' Set obj = Nothing

End Function

If you like this send me an e-mail. I want to be famous.

Jul 26 '06 #1
1 6510
If you like this send me an e-mail. I want to be famous.

For what? There's been code for this on MS's website for YEARS. Oh
well, so much for being famous.

Jul 27 '06 #2

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