Jagwarman

asked on

# Random distribution formula

is there a formula that will divide a number randomly between a given number.

So lets say I have 10 clients and 35 widgets.

I want to distribute the widgets across the 10 clients randomly.

so

Client 1 gets 4

Client 2 gets 0

Client 3 gets 3

Client 4 gets 2

Client 5 gets 1

Client 6 gets 1

Client 7 gets 3

Client 8 gets 6

Client 9 gets 8

Client 10 gets 7

Thanks in advance

So lets say I have 10 clients and 35 widgets.

I want to distribute the widgets across the 10 clients randomly.

so

Client 1 gets 4

Client 2 gets 0

Client 3 gets 3

Client 4 gets 2

Client 5 gets 1

Client 6 gets 1

Client 7 gets 3

Client 8 gets 6

Client 9 gets 8

Client 10 gets 7

Thanks in advance

ASKER

thanks Ryan only this is I was looking for formula rather than vba. The above was an example and so potentially the number of Clients will be a moving target. i.e. I put 10 in example but in live there could be 20 or 70 or 35 or 100 etc.

Regards

Regards

ASKER CERTIFIED SOLUTION

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HI,

Or you could use a UDF returning an array see example

28695867V1.xlsm

Or you could use a UDF returning an array see example

```
Function RandomWidgets(nrWidgets) As Variant
Dim Res() As Integer
With Application.Caller
CallerRows = .Rows.Count
End With
ReDim Res(0 To CallerRows - 1)
Randomize
For i = 1 To nrWidgets
rIdx = Rnd * Now() Mod CallerRows
Res(rIdx) = Res(rIdx) + 1
Next
RandomWidgets = Application.Transpose(Res)
End Function
```

Regards28695867V1.xlsm

ASKER

I like that and it's flexible

Fomula driven, for first client, in G4:

=RANDBETWEEN(0,B1) where B1 has number of widgets

For remaining clients G5 down, against list created manually in column A:

=IF(A6="",$B$1-SUM(G$4:G4),RANDBETWEEN(0,$B$1-SUM(G$4:G4)))

Checks if last client and takes balancing figure other wise takes Random value between remainder and zero.

Thanks

Rob H

=RANDBETWEEN(0,B1) where B1 has number of widgets

For remaining clients G5 down, against list created manually in column A:

=IF(A6="",$B$1-SUM(G$4:G4)

Checks if last client and takes balancing figure other wise takes Random value between remainder and zero.

Thanks

Rob H

28695867.xlsm