Create Unique Random Numbers
Feb 19, 2008
I have 12 Cells, years 1 to 12. I want to create a random number for each cell, which then depending on what the number is, either 1-75 being 8,000,000 or 76-100 being 10,500,000, place it in the cell and be able copy it down. What i have done already you can see on the attached workbook, or the table i used:
I used this table to generate the random number to give either 8m or 10.5m, except i put the VLOOKUP in the year 1 cell, added some dollars signs and copied down but that only makes them all the same, so i want a way to make each year have its own random number preferably without making 10 tables.
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Feb 5, 2008
I'm needing to generate a unique random value for a database with 3546 cases. The unique random values cannot be duplicates of each other. I tried the =RANDLOTTO function that I learned of in an old post on this board, but that results in "#NAME?" appearing in the first cell. I tried to install the Add-Ins (both the Analysis ToolPak and the Analysis ToolPak - VBA, but nothing seems to happen. Is there another way to generate these numbers?
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Oct 7, 2005
I want to generate numbers (1 to 15) in cells A1 through O1, but the
number in each cells should be unique compare to the other cells, how
can I do it? If I use =randbetween(1,15), I can not get unique number
in each cell, some numbers are duplicated.
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Jun 27, 2009
I need a macros to fill 2000 rows with unique random numbers from 1 to 19 in B2:T2001 area. Every row like this
14 11 12 7 18 13 19 5 6 16 9 4 8 15 1 3 10 2 17
Actually it's about random positions in rows for numbers from 1 to 19.
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Mar 27, 2014
I have 1200 doctor/patient records to input into an excel spreadsheet for import to an online EHR database. I can set up all the normal formulas and formatting but for the life of me not figure out how to create a custom formula to take the first letter of the patient first name and last name and add 6 figures to create a unique patient identifier.
ie. James + Smith+ random 6 figures = JS245318.
In my spreadsheet the first name is under Column 1, Last name Column 3 and the unique number generated in column 4.
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Mar 22, 2014
In an earlier life I was tasked with finding a "random" method of selecting two numbers from a "1 to 20" range so that the generated numbers can be applied to an set of people who will be partnered in a golf game draw.
It is only one draw per year so I don't care if the players have previously played together in past years.
easily be modified by a "passable knowledge level" person to be able to select a mystery "9" out of 18 holes that count for scores that particular round.
(btw: this is an issue only for the 20 guys who go away once a year to play golf, the world will not collapse if I have to draw numbers out of a hat, just looking for a slightly more elegant solution and I already have a few scoring macros so my first guess (but not only possibility) is VBA)
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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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Oct 3, 2013
I attempting to create a formula that will create random numbers in a column without repeats. For example, I have a spreadsheet with two columns. The first column I want to contain the random numbers and the second column will contain names. I just need the formula to create the random numbers once.
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Nov 21, 2013
I'm trying to create a staff rota which will populate a rota randomly when prompted - I have been trying to find some way of connecting the random lists and the staff names, though this has proved difficult (to say the least!). How best to proceed? I'm also fully aware of the possibility that my present design will also double book people (place then on reception and telephone duty simultaneously).
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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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Sep 4, 2012
I have data table
A3:D103
Column A are unique serial numbers
Column B, C, D contains test values.
F1= 50 (No Of unique random samples to be pulled - No Duplicates)
The out put range for sample data starts from F3:I3
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Mar 31, 2014
Is it possible to add letters to this "Unique random number" generator it is very fast and takes only 5s to run on 50,000 rows, I have a different "Unique random Sequence generator" macro but it takes about 30 minutes to run on 50,000 rows
Code:
Sub generateuniquerandom()
Dim b() As Boolean, e As Range, k&, x&
Dim lRow As Long
With Sheets(1)
lRow = .Range("F" & .Rows.Count).End(xlUp).Row
[Code]...
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Aug 16, 2008
I need to set up a formula to choose 2 job titles from a single column. There can be 2 to n job titles (non-repeating) and I want to find the title at random. I have no problem finding the first job title using index and randbetween, but I want the second title to meet the same criteria, just not equal to the first job title.
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Feb 19, 2007
I have a formula-generated defined list of names. I need to select them in random order without duplication and without choosing any blanks in the list.
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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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Oct 5, 2007
I have a list in rows where I have a ranking formula =COUNT($G$5:$G$81)-(RANK(G5,$G$5:$G$81)+ COUNTIF($G$5:G5,G5)-1)+1 When I sort the rank, ascending. All of the unique numbers sort ascending, but the non-unique numbers sort descending
ex) 1.751
2.52
3.753
418
417
416
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Jul 18, 2012
How do I create a 6 digit unique random number for use as an ID in column A. Once created the rows with preexisting 6 digit unique random ID numbers must not change every time new rows are added.
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May 5, 2009
I have a formula to generate a random number between 0 and 10.
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Mar 1, 2012
I am trying to create a random name generator. I have tried something like this...
=INDEX('TM Names'!$A$2:$A$36,INT(RAND()*35+1))
But sometimes it will give you the same name 2 or 3 times in a row. I need it to pull up a different name each time, from a list of names I already have.
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Jun 5, 2014
Say column A has either numbers or text in each cell, I need a macro to only get each number in each cell that is not a duplicate of a number in any previous cell and list each number found down column B.
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Sep 9, 2005
What do I need to do please to have a number in a row 1 to 40 as an example below
1,23,9,25,33,40 each row needs to be 1 to 40 but number no more than once
six rows deep yes the other rows can have the same numbers as above or below
=INDEX(ROW($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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