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Old August 15th, 2003, 07:05 AM
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Default find the average value from a column of values

For this code I wanted to find the average of many numerical values in a column (CategoryA) in a table. First I found the number of record/values in CategoryA which is held in the variable iRecordCount. Then I made an array to gather all the values in the column which is held in ARR1(). Then I had a series of if then statements that found the right number of records/values in ColumnA this would ensure that the correct number of array values were added together. Everything in the code is functional however, I plan to have hundreds of values in my table and many more columns so I would have to use hundreds and hundreds of if then statements. If anyone is out there who knows an easier and more efficient way of calculating the averages of values in a table I would greatly appreciate some help. I am sure this is a common problem but unfortunately I have not seen any tutorials or forum topics devoted to it.

'Find the number of values
Dim iRecordCount
iRecordCount = 0
iRecordCount = iRecordCount + 1

'Find and hold the values in CategoryA
FOR I = 1 to iRecordCount
Redim preserve ARR1(I)
ARR1(I) = rsVariable("CategoryA")

'Depending on the number of records add that number of records together using the values held in the array
if iRecordCount = 2 then
total2 = int(ARR1(1)) + int(ARR1(2))
response.write int(total2)/int(iRecordCount)
end if

if iRecordCount = 3 then
total3 = int(ARR1(1)) + int(ARR1(2)) + int(ARR1(3))
response.write int(total3)/int(iRecordCount)
end if
Old August 15th, 2003, 07:31 AM
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dim t, iTotal
For t = 1 to iRecordCount
    iTotal = iTotal + cInt(ARR(t))
As for how you get your recordcount and fill your array, you should have a look at the GetRows method of the Recordset object.

Old August 15th, 2003, 07:37 AM
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How about as bit of SQL instead?
Set rs = connectionName.Execute("SELECT AVG(ColumnA) AS TheAverage FROM TableName")
Response.Write rs("TheAverage")

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