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randomly select value WITHOUT changing
I am using a formula to randomly select one of the values in a list. However, the value returned by the formula changes with each recalculation (F9), and I do not want that to happen. IS THERE A WAY TO GENERATE A RANDOM VALUE FROM A LIST WITHOUT IT CHANGING WITH EACH RECALCULATION? The reason I ask is that I have combo boxes in the worksheet which makes it recalculate whenever they are used. PART 2: Is it possible to assign the formula to a button so that the update only occours when it is pressed? *** FYI formula used to formula to randomly select one of the values in a list: INDEX, ROUND, RAND, and COUNTA functions in the following formula: =INDEX(A2:A7,ROUND(RAND()*COUNTA(A2:A7),0)) -- Doyle Brunson ------------------------------------------------------------------------ Doyle Brunson's Profile: http://www.excelforum.com/member.php...o&userid=19235 View this thread: http://www.excelforum.com/showthread...hreadid=398107 |
Doyle,
To my knowledge, you can't control when an Excel formula updates. You can, however, create a macro that does this. Paste the code below into VBA (ALT+F11) and it will randomly choose a number from A2:A7 and deposit the value into the currently active cell. You can link this code to a button if you like. Be sure that the sheet with the datalist is currently selected (this shouldn't be a problem if you put your button on the same page). Here's the code: '--------------------- Sub RandomListSelect() ListRange = ActiveSheet.Range("A2:A7") CountAProxy = Application.WorksheetFunction.CountA(ListRange) ActiveCell.Value = Application.WorksheetFunction.Index(ListRange, Round(Rnd() * CountAProxy, 0)) End Sub '--------------------- Knightly Quote:
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It's working perfectly. Thank you for a useful macro. -- Doyle Brunson ------------------------------------------------------------------------ Doyle Brunson's Profile: http://www.excelforum.com/member.php...o&userid=19235 View this thread: http://www.excelforum.com/showthread...hreadid=398107 |
Hi I tried the macro and it kept stopping. It keeps saying "Variable not defined" while highlighting "ListRange =" in the macro. I have 4 7 2 14 12 16 showing in A2:A7 on a blank worksheet. Not sure where the uniqe random number is supposed to be. -- tx12345 ------------------------------------------------------------------------ tx12345's Profile: http://www.excelforum.com/member.php...o&userid=24776 View this thread: http://www.excelforum.com/showthread...hreadid=398107 |
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