Random Number Generation Without Repeating Across Same Row Or Column?
Nov 24, 2011
Been trying to think of a way to get random numbers 1 to 36 generated without repeating in the same column, however also getting it to perform the same opertaion in 9 more columns (B:J) without the same number appearing in the same row.
example
1 2 5 4
2 5 3 1
3 4 1 5
4 1 2 3
5 3 4 2
Unsure if this is possible, have created a basic script for random number generation but have no clue how to expand across columns.
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May 4, 2006
I get the following error whenever I try running a Monte Carlo simulation with iterations in excess of 64000 (The MC simulation calls the 'NormSInv' worksheet function at least once per iteration, and the argument to the 'NormSInv' function is always a standard normal RANDOM number also generated by Excel VBA): Run-time error '1004': Unable to get the NormSInv property of the WorksheetFunction class
Why do I inevitably encounter this error ONLY when the number of iterations exceeds 64000, for instance? Simulations with iterations < 64000 run smoothly without a glitch.
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Jul 29, 2009
I understand how RAND and RANDBETWEEN work, but have a slightly more complicated random number generation problem that requires a number that isn't solely between two numbers.
I have one cell that is randomly generating a number between 0 and 350 (we'll call this value A) and another randomly generating a number between 0 and 15 (value B). Then, I have a third cell (value C) that equals 15 minus B. Where I am having trouble is with a fourth cell (value D). This cell I want to have randomly generate a number between 0 and 350 but it needs to be D less than the value in A or C more than the value in A. Is there an advanced random number generation technique that can solve this?
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Oct 1, 2008
it is possible to generate a completely random number generation in excel?
Other than using the rand() function and then sorting by top or bottom (as then have affected the sample by choosing which direction it is sorted).
And the randbetween() function changes everytime you modify a cell.
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Oct 24, 2012
The code below generates numbers in the range (A2: H2)
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Oct 4, 2005
I have three columns A,B&C In the column A Iwill generate random
numbers between 40&50, In the Column B I will generate random numbers
between 35&45, The column C is the sum of Column A&B(i.e. C=A+B) but I
the sum should be between 83&88. I need acondition such that the random
numbers generated in Column A&B Should satisfy the Column C(A+B)
condition sdatisfying the A&B columns condition.
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May 8, 2006
I'm trying to write a code that will generate random numbers and no number appears more than onece.
For I = 0 To 3
For J = 0 To I
Do
n = Int(4 * Rnd) + 1 'random number generated
Array1(I) = n 'random number settled in an array
If (I = I - J) Then 'checking for the same place in array
numsOK = True
Else
If Array1(I) = Array1(I - J) Then ' comparing two different places in an array
numsOK = False
Else
numsOK = True
End If
End If
Loop Until numsOK = True
Next J
Next I
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Sep 20, 2008
I would like to generate a random value using a skewed normal distribution. For inputs I have the sample mean, standard deviation, and skewness. I would like to find a way to generate numbers randomly that would fit the skewed normal distribution described by the inputs.
Some information about skewed normal distributions can be found here: ...
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Jan 1, 2008
I want to generate a random number based in a poisson and i use this
Application.Run "ATPVBAEN.XLA!Random", ActiveSheet. Range("$B$2"), 1, 1, 5 , , 35
But i want to save the number in a dim single variable called N. I try to put N where i have write ActiveSheet.Range("$B$2") and do N=Application.Run ...
But it doesn't work.
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Apr 12, 2007
I made a code that automatically checks the date and then compares it to the date of the last save. If it is a new date then the colors of the tabs will randomize. It can also be done manually via a button. The problem is that I have now realized that the colors are always have the same pattern. Every day the first color is an orange color, no matter how many times I randomized yesterday...and so on. Is there a way to make the randomness not have a repeating pattern?
Sub MMVII_4_9_b()
Dim NewDate
If Sheets("Scrappaper"). Range("F2") = Date Then
NewDate = 0
Else
NewDate = 1
End If
'Determines whether it is a new day or not
Sheets("Scrappaper").Range("F2") = Date
'Updates the date
If NewDate = 0 Then
'Does nothing if the date is the same
Else
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Sep 7, 2006
In my worksheet in column CC in C1:C20 I want Excel to ganerate 20 random numbers between 1 and 80 without repeating the same numbers.
At present I have the following formula entered and it works, but after I click F9 some repeated numbers are generated.
=INT(RAND()*(80-1)+1)
How can I change the formula or replace it?
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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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Mar 21, 2014
I need the easiest way to randomize or generate team numbers in a league. Using COL A assign numbers between 1 & 8 without duplicates. Then repeat 5 more times. This has to be done on the spot and has time constraints as the players will be waiting for their team assignments.
EXAMPLE: I have 48 players which will be assigned to 8 teams of 6. I want to randomize the drawing so the same players don't play on the same teams each week. Also to be able to adjust number of teams determined by how many players are present. either 6 , 8, or 10 teams.
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Apr 26, 2007
I have multiple users that use a spreadsheet to enter data. I am trying to figure a way to assign a case number to each row of data that is entered. I cannot really do sequential numbers, because often people are entering data at the same time, and often these people are working offline.
So I was thinking if I could somehow have the case number be a few letters (to identify a specific person) and then a series of numbers (to signify which case number it is). That would allow multiple users to enter data offline simultaneously without having to worry that the case numbers are going to be the same. Maybe I could use the Application.UserName and somehow parse it to give me the letters (perhaps Intials or something), and then somehow apply sequential numbers to that...
for instance, JJH00001, JJH00002, etc
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Apr 6, 2009
I am copying various rows from one spreadsheet to another (sheet3) and would like to total one of the columns. The trouble is that since I don't know how many rows there will be I am having trouble inserting a formula that will work. I am sure that there must be a simple solution but I can't seem to find it.
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Apr 20, 2012
I have a column of values I need to multiply by a random number (percentage) within a range of numbers (15%-22%).
How can this be done?
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Oct 7, 2009
I m trying to achieve is generating ref numbers automatically.
I have attached an example.
In Cell A if the user choose yes it gives a ref number. The trouble im having is that say in cell A5 a Yes is choosen at a later date, it will throw the numbers out of order and the ref numbers get mixed up, there any way of stopping this from happening or any function that prevents this from happening
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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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Mar 29, 2002
You must install "Analysis TookPak-VBA" before doing this; check in your Excel's Tools/Add-Ins menu. Paste this long function (see below) in an Excel's worksheet (any cell) and press F9 (calculate) until you see at least 2 identical numbers. Real life's lottery does not have repeating numbers. I can disable this repetition by using cells relation but I want to use just one (1) cell. Any expert wants to challenge? If not, you can use VBA. But it still requires one (1) line of codes.
=RANDBETWEEN(1,50)&" "&RANDBETWEEN(1,50)&" "&RANDBETWEEN(1,50)&" "&RANDBETWEEN(1,50)&" "&RANDBETWEEN(1,50)&" "&RANDBETWEEN(1,50)
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Jun 19, 2007
The following table/ code is something which I've been trying to tailor from a previous post so I'm not taking the credit for what I think is some very good code. Unfortunately I can't find the link to it - sorry!
Right, I have a number of columns containing a various amount of data entries in each with the first row being the header. I would like to generate all possible combinations of this data in one column, the entries separated by commas, that will eventually be exported as a csv file.
The number of columns and number of rows in each column will be changed regularly ...
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Feb 14, 2010
my document column "M" ,this type of numbers are there.
column "M"
125468A-B
125468A-B
458962
256897
412589A-C
412589A-C
412589A-C
01.i need to remove A-B,A-C part.
02.after that any number are repeating that all the number's end part should add (A,B,C,,,,)it's like this.....
[b]
column "M"
125468A
125468B
458962
256897
412589A
412589B
412589C
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Oct 19, 2013
raw data (before formula)
freq (number)
name
1
bill
4
zidan
3
marcos
etc
desired result (after formula)
bill
zidan
zidan
etc..
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Apr 20, 2006
sorting data I use in a workbook for athletics. I've really chopped down my workbook for upload, In the worksheet "Leaderboard" I can call up stats for different lifts, and it finds (in this case) the top 5 lifts and the names for the kids that have those corresponding lifts.
My problem is that when two or more kids have the same lift, it will only call up the name of the first instance of that lift. You can see this in the "Leaderboard" worksheet, and the name "Adams, Andrew" appears for both lifts of 75. I would appreciate any help on how to correct this, as I've searched the Internet for weeks now looking for a solution. I've tried experimenting with different things as well, all to no avail.
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Feb 21, 2014
This is for a template for teachers to analyze student testing data. On sheet4, wrong answers in each column are noted by a lack of a + in the corresponding cell. I want to paste the names of the students who missed each question into sheet 5.
I've done it by repeating a filter macro, but I manually copied the following separately for the 75 columns in the template.
Problem #1 - there must be a more efficient code, something that automatically loops to the next column
Problem #2 - the template has 75 columns, but many tests have fewer questions. I'm trying to find a way to stop the loop whenever it hits a blank cell in Row 10 on sheet 4. I've done it with an if/then in the last section on the above code, but where I'm at now, i would have to add that to the code section for each column. Which isn't that big a deal, but I figure there must be a better way.
The relevant portions of the workbook are attached here.
repeating macro until hits blank cell sample.xlsm
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Jun 15, 2014
i need a formula for a sign in sheet for the academy i work at. we have night and day classes of the same sessions, in the planner they are listed as d1, d2 d3 and n1 n2 n3 and so on for each.
so basically im trying to create a formula to quickly ender the d1, d2, d3 ect into the cells on eachpage for the students to sign in for each day it works out to be about 190 calls and 9 diferent classes to you can see why id like to speed this up. problem is i need the number to change not the D and excel want to use the cell allocation.
as you can see from the document i have not attatched, i have created a formula to add in the dates automatically, i would like to do the same with the session numbers or the D numbers, this is one of the shorter courses and has about 190 days
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Jan 22, 2008
I am trying to create a formula that would provide a result a specific number of times based on a table in a seperate worksheet. Here is an example:
Person: # of times
John 2
Joe 2
Frank 2
Jack 1
Based on an IF statement, the cell should bring back John, the next cell down should bring back John, the third cell should bring back Joe as John has reached his limit of 2, and have this repeat until all criteria that meet the IF statement have been met.
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Sep 19, 2006
I have an excel sheet that we need to type in an account number it always starts with 8774100 then has 9 more numbers. If I leave it on number formating it always changes the last number to 0 so I format the cell as TEXT. Anyway is there a way to get the 8774100 to automatically go in and only have to type the last 9 numbers? I know I can copy paste but then I have to double click or make sure I enter the last 9 numbers at the end or use the top entry. The data entry people just want to hit enter and go from line to line fast. In the past I just divided the cell into 2 cells and made the 8774100 in column A and columb B was the ending 9 numbers. But they need to be in the same cell.
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Jun 1, 2009
I have a form that users will fill in, and I need to print a set number of labels (all identical) based on the info that is entered.
I have the form set up with data validation and indirect references(Lists on a separate sheet)
Example...
User enters in:
Customer name
Product name
Lot #
PO#
Date made
Number of items
From there I have a separate set of cells that reference the above info formated to how I want the label to appear when printed.
Now, I need to repeat that label the set number of times (# entered in as "number if items") in a label sort of format (not sure if a mail merge will work for this??)
Then, print off and stick identical labels onto each part that is manufactured per PO/Date etc.
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Jun 26, 2013
I need a formula that will add .1, .2, .3, etc. to a repeating list number. See the example below.
Project Work Id
8069000
8069000
8069000
8069000.1
[Code]....
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Dec 19, 2013
I have a file that I converted to excel and am trying to now convert from rows to columns. So far I have set up the code to do it 3 times but need it to repeat every 12 rows. Here is what I have so far:
Sub rowtocolumn()
'
' rowtocolumn Macro
[Code]....
Not sure what to do to make it repeat?
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