# Creating Random Numbers

Jun 2, 2006
Im an using excel to run a simulation of demand over a period of 200 days. i have an average daily demand of 7.75 and a stdev of 2.6. Is there any way to generate random numbers (for daily demand) based on this data?

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May 19, 2014

I am trying to create challenge/response cards. Each card will have a 5-digit number in the upper-left and lower-right corner along with a series of rows containing a line number and 3 pairs of challenge/response words.

Rather than have have copies of these cards, I want the central office to have a macro-enabled workbook wherein they can enter the two numbers from the card and have the challenge/response matrix regenerate on a worksheet.

So, essentially, I want the challenges random number generator seeded from one of the 5-digit numbers and the responses random number generator seeded from the other 5-digit number.

I am trying to use

Code:

Randomize(Seed)

where Seed is one of the 5-digit numbers.

The problem appears to be that, no matter what I use for Seed, the RND(-1) function is not resulting in different numbers.

I am using Excel 2007 and Excel 2010.

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Sep 18, 2009

I am working on a Random Cycle Count Generator that provides random SKU#s based on 3 separate columns of SKU listings. The user clicks a button to generate the SKU#s to cycle count for that day. What I would like to see is a date stamp in the columns next(B,D,F) to the referenced SKU listing(A,C,E) based on which SKU#s are generated. This will let me see the last date that the SKU was generated. I would also like it to automatically save after generating.

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Apr 19, 2007

I have a mastersheet that once I open I would like to generate a 3 digit serial number in cell C22. Once this file is opened and the number is generated I do not want the number to change at that point. I have a macro to save the file with data in certain cells. Once this macro is run and the file is saved I will need to be able to open that file to view info but the serial number can't change.

I would like to do this without an add-in so that any client can use file no matter there settings if possible

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Aug 9, 2013

Here's what I'd like to do:

Have 10 columns... one column would be for the "1s", another for the "2s", another for the "3s", etc...

But I don't want to have them in straight order (i.e. 1 x 1 =, 1 x 2 =, 1 x 3 =, etc...) because the pattern is easily memorized, no matter what number he's working on.

I'd like to be able to hit a button (or something) and have each column shuffle (or randomize) the order in which the equations will be displayed.

So, a column might come up 3 x 6 =, 3 x 9 =, 3 x 1 =, 3 x 4 =, etc...

And next time it might come up 3 x 5 =, 3 x 2 =, 3 x 4 =, etc...

This way he won't be able to memorize any patterns and he'll actually need to learn his multiplication tables.

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Jul 27, 2014

I am looking for a product that uses excel to create a random test form a bank of questions. I have 50 questions in all and I need a random test of 35.

I can and have messed around with the following. Excel 2012

A

B

C

D

1

Random #

Test Number

Small-Sort

Random Question

I could even shorten it a bit by placing like this. MATCH(SMALL($A$2:$A$4,B2),$A$2:$A$4,0). Of course this is only the start and it would have in column B 1-50 and in column C&D 1-35 for the selection process. Then I was going to set up on sheet 2 my list of questions 1-50 and my idea was to use 1.1, 1.2, 1.3, & 1.4 for the answers to question 1 and then vlookup. so that when and if question 1 is part of the 35 random then I could pull the answers over as well. but as I started the 'animal' will get bigger and bigger fast.

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Nov 11, 2013

I am creating 100 random portfolios from a list of 10 assets. I have the return history of the 10 assets and I'm able to calculate the mean and standard deviation of each asset as well as the covariance/correlation between each of the 10 assets. I want to choose to portfolio with the least variance as well the portfolio with the lowest and highest return.

Would it also be possible to introduce a limit that constrains the maximum allocation to each asset at 25%?

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Mar 23, 2012

I have 800 rows of patient information, I need to sample 70 patients. I used the Random.org randomizer to get my 70 patients. That randomizer only gives me the line numbers such as 1, 8, 23, 45, 70, etc. I then need to go to Excel and just pick out the patients on those lines I was given above. Is there an easy way in Excel to have my spreadsheet of the 800 rows and create a (simple) calculation that will pick out the line numbers that I need all at once, so I do not have to go thru manually and choose the data from row 1, 8, 23, 45 etc to make my new spreadsheet with only my sample patients on it. OR is there a easy way to pick 70 random lines from a spreasheet..

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Jan 7, 2010

I have some VBA (using Excel 2007) that deletes and re-creates a bunch (20-ish) checkboxes in a spreadsheet. Since i'm using the controls-based checkboxes, Excel defaults them to object names of "CheckBox1, CheckBox2, CheckBox3, etc" as I create them the first time around.

Later on, i clear all checkboxes and implement the SAME checkbox-creating code to re-create all or some of the checkboxes, but Excel doesn't number them in order the second time around! I end up with something like "CheckBox2, CheckBox19, CheckBox3, CheckBox12, etc."

What could be causing my code to create things out of order the second time around? Is there a way to reset Excel's Checkbox-numbering iterator?

The code i'm using to create checkboxes is:

Dim x As Long

Dim BoxCell As String

BoxCell = ""

x = 0

'j gets passed into the sub as a "Long" somewhere between the values of 5 and 35

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Aug 4, 2006

What i would like to do is, create a random weekly work rota, so I just have to go in every week and let excel randomly but fairly creat a rota the employees so that they don't argue about whose doing what and just get on with the work. : D

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Aug 11, 2014

Im looking to create random data for an athlete over about 4 months with daily tests, however when im using the =randbetween(*,*) function the data is too 'Random'. so im looking to create a trend in the data, like real athletes will have. is there a function in Excel 2010 that can do this?

The boundaries of the data are -336,416 (i know its quite a big range)

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Oct 24, 2013

I need to generate 8 (random) numbers which should range between 0 to 80 and the sum of those generated 8 numbers should be 80.? How can I achieve this.

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Dec 14, 2006

I have a list numbered 0 to 300. What I am looking for is a formula to randomly select 150 unique sets of two numbers and list them in separate columns for a competition draw and should appear as per the example below

HomeAway

7v96

11v4

146v25

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Mar 17, 2008

I am looking for a way to create a random order of numbers in a given range. For example, A1:a100 to be populated with a random number between 1 and 100, but not to duplicate, using every possible number within that range. I use the RANDBETWEEN function to generate the numbers, but I cannot prvent them from duplicating.

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Sep 9, 2005

What do I need to do please to have a number in a row 1 to 40 as an example below

1,23,9,25,33,40 each row needs to be 1 to 40 but number no more than once

six rows deep yes the other rows can have the same numbers as above or below

=INDEX(ROW($A$1:$F$10),RANK($H1,$H$1:$H$60))

=RAND() copied H1:H60

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Apr 6, 2014

How can I use a macro on a button in SHEET 1 to generate random numbers on SHEET 2 as follows?

Cell A1: (1-10)

Cell A2: (1-6)

Cell A3: (1-100)

Cell A4: (1-12)

I've got it working with formulas, but every time I press "DELETE" the random numbers jump to new values.

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Aug 13, 2008

I have had some difficulty searching this on the web, but how would I generate a random number between 1 and n?

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Jan 3, 2014

I have build a system that needs a lot of random numbers generated to work.

I have used what I thought would work to generate me these numbers like this example:

VB:

Lastrow = ThisWorkbook.Sheets("RPlay").Range("A" & Rows.Count).End(xlUp).Row

RPlayerNum = Int((Lastrow - 2 + 1) * Rnd + 2)

This would generate a random number into RPlayerNum variable, based on the list in sheet RPlay, missing off row 1 as the header.

However we have noticed a massive flaw in this code.... It works as long as the excel file is open, each time run it gives a different random number. However if you close the excel file and open it, then run it, it ALWAYS gives the same number first run, every time.

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Aug 19, 2014

I am creating an excel spread sheet for a project I am doing, I need to create a daily chart for 6 months of water usage that results in averaging set targets.

I have made a chart with the average uses per day but would like to have daily numbers that average out to what i have but in a random sequence e.g. i have that a shower uses 320 litres per day for 2 people is there a way i can make a chart that says: 300 (a1) 340(a2) 260(a3) 360(a4) etc i need to do this for 180 days with random numbers generated to average the same overall. I dont know even how to generate random numbers.

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Feb 3, 2014

Any way to make say cells A1 thru A10 produce random numbers from 0 to 9.

I would like to do it without a macro if possible. I also need a button to generate those random numbers. I know this button may make it impossible to not use a macro. If it has to be done with a macro then so be it.

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Feb 23, 2014

I have a process that generates the value X in cell A1 randomly. So I can change the value of X in A1 by clicking on F9. I want to sum a sequence of X values. I can do this by manually copying each X to a row of cells and then summing the row values. But that is tedious. Can the summation be done automatically without being regarded as being circuler?

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Feb 1, 2009

I am trying to generate random numbers between 0 - 9 in ten cells that do not repeat an always include every value 0 - 9 (0, 1, 2, 3, 4,...9). The object is to have the numbers randomize each time. So cells A1:A10 could look like this:

3

9

4

5

1

0

6

8

7

2

Or, they could look like this:

9

7

5

2

8

4.................

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Dec 3, 2009

I have two rows in a sheet with random numbers (1 till 90).

Those numbers in those two rows I change them every 5 minutes with new one still from 1 to 90

I need a "way", in one side of my sheet (lets say in column B) to count how many times a number was repeated after finish my work (example after 2 hour's)

Is that possible with excel 2007?

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Jan 30, 2010

I want to set up a column of numbers that will be random without any repeating numbers.

Example: If I set up for 1,000 rows, I would like the random numbers to be 1 to 1,000, but the catch would be to have no duplicates in the column.

It has been several years since I worked with Excel and I am sure this can be done with a macro, but I am not sure how to go about it right now.

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Jul 13, 2009

I'm trying to generate random numbers that will add up to a certain number and am having trouble brainstorming how to do so. For example, I'm trying to get a+b+c=6 with a, b, and c randomly generated to add up to 6.

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Feb 3, 2014

Any way to make say cells A1 thru A10 produce random numbers from 0 to 9.

I would like to do it without a macro if possible. I also need a button to generate those random numbers. I know this button may make it impossible to not use a macro, but If it has to be done with a macro then so be it.

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May 14, 2014

generate 100 random numbers between 100 and 300 in some range of cells like A1:j10

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Feb 22, 2008

Im wondering is there any way/method to make a certain number of cells randomly produce to an amount you want.

For Example:

1 92

2 150

3 37

4 86

5 38

6 97

7 =500

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Mar 12, 2008

Is there a way to generate random numbers between 1 and 63 without any duplicates?

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Jul 25, 2008

I want to generate 12 random numbers between 1 and 75 w/ no repetition.

I was using the aleatórioentre which translate ro "randombetween" function.

But, obviusly, I cant figure out how to make them unique, with no repetition.

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