Random Number Selection...
Apr 19, 2006random number selection...
i have a list of 200 items (rows) and i would like to "randomly" select 30 of them...(next month i will get another 200...)
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Random Data Selection
Jan 13, 2009I have data for number of firms as :
year firm
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
.............
.............
1 1000
2 1000
3 1000
how can one chose random samlpe from this population.
Sampling/Random Selection
Jun 28, 2009I have a file (see SAMPLE file attached) with over 2000 records. I need to know if there is a way to do a sampling or random selection by ethnicity and gender in order to get a diverse population for only 60 individuals. The selection criteria should be on ethinicity and gender.
Is this possible?
Select Random Cells In The Selection
Feb 8, 2009I'm trying to select an x number of random selections within the selection.
Basically, lets say A1:A100 is selected, im going to have a inputbox asking how many to select, you put 10 in the inputbox, and then it randomly chooses 10 from A1:A100 and highlights them
This seems easy enough, i can do the input box and know the random function. just not sure how to set the beginning point and the ending point with Cell locations and then have it highlight those selections... a for loop I'm guessing?
Random Selection Based On Criteria?
May 15, 2013 I have been able to put together the below which generates a random 15% sample of all records in the worksheet.
It works perfectly, however what I would ideally like to do is get it to only produce the 15% sample of rows where it is todays date in col B and has the word "other" in col C. I've tried lots of different IF statements and FOR statements, but am only generating blank worksheets.
Sub getrandomrows()
Dim lr As Long, lc As Integer, a As Variant, MyDate As Date
lr = Cells.Find("*", LookIn:=xlValues, after:=[a1], searchorder:=xlByRows, _
[Code].....
Random Selection Of A Subset Of Numbers
Aug 29, 2008I have a set of 20 numbers that I regularly wish to select 6 numbers from, without duplicates
View 9 Replies View RelatedRandom Selection Based On Odds
Jan 10, 2007Create a random selection based on odds. It would be similar to the RANDBETWEEN function, but in this case I specifically want one of the three values to be selected randomly in cell C2 based on the odds given.
View 9 Replies View RelatedRandom Selection Based On Criteria
Jun 24, 2008I am working on a challenging project. I have a list of names, job titles, and departments. Is it possible to select a random name who matches a specified job title or department? I'd prefer not to sort/filter/delete the original data range because the sheet will be used multiple times during the day by multiple users and with different criteria each time.
View 6 Replies View RelatedGolf 4 Ball Random Selection With Preconditions
Apr 21, 2014organising a golf tour for 32 players.playing in teams of 4 (4 Balls) for 4 games of golf and the teams are to be randomly selected such that no player plays in a group with a person he has played with in a previous game. finding it difficult to create a spreadsheet which meets this criteria.
need to build into the spreadsheet the fact that the variable mix of people is constrained by the fact that at least 4 persons have to use a buggy (which will have 2 people in it) and as the tour progresses and courses become physically demanding a number of people (N) for the last 2 rounds may also ask for the use of buggies as well.develop a spreadsheet to make the 4 Ball team selections.
Random Selection With Multiple Column Criteria
Sep 3, 2009I want to do is randomly pull from a field of data, MINUS any cells that do not meet the criteria in other columns. So if column A is my target column for the random selection (containing 10 unique entries), and column B has 10 repeating colors, and column C has 10 repeating animals, what can I use to perhaps create this effect: A random pull from column A, but only from rows in which column B says red and column C says cat? (The pull being 1, 4, 7, or 9 in the below example, of course.)
Data (this example is also attached in an excel doc):
One Red Cat
Two White Dog
Three Blue Horse
Four Red Cat
Five White Cat
Six Blue Cat
Seven Red Cat
Eight Red Dog
Nine Red Cat
Ten Red Horse
I have tried variations on IF and INDEX to no avail. Perhaps something with SUMPRODUCT?
Random Option Selection Based On Variable Input
Jul 23, 2009I need an action to allow for the random selection of a predetermined series of number codes which represent a given letter.
It is probably easier to look at the attached sheet and the previous discussion to see what I mean.
Previous discussion:
http://www.excelforum.com/excel-work...-of-cells.html
Random Selection Of A Data Located In A Column, By Text Color
Feb 5, 2009I am wondering, in excel 2003 is it possible to randomly select two numbers from one column, say column b9:b45, that are random numbers, and selected by two different font colors. In other words: b9=1348, b10=1349, b11=1350, b12=1351, b13=1352, b14=1353.
Say we press a macro button, and in field B50 one radom black colored number is selected of a field of say 30 numbers that are all black in that column, and in b51, one red number is selected, in a field of 30 red numbers. We want to used this macro to select winners simulating a raffle drawing.
Random Selection Of Cell Value From List Based On Changing Weighting
Apr 24, 2009I have a list similar to the below:
#....|Name.... | Weighting %
1Artur Boruc 1
2Igor Tudor 5
3Alessandro Grandoni 3
4Gian Elia Amoretti 3
5Olivier Kapo 12
6Kim Källström 13
7Emiliano Bigica 13
8Julio Baldivieso 12
9Fabrizio Miccoli 13
10Peter Vougt 14
11Massimiliano Esposito 12
What I want to do is randomly select either number 1 to 11 (leftmost column OR the person it represents) but also make the selection based on the percentages in the rightmost column. To illustrate using the above example, Number 11 (Massimiliano Esposito) should have 12 times more chance of being randomly selected than Number 1 (Artur Boruc)...
I have used a formula such as
PHP
=INDEX(A$1:A$11,INT((RAND()*11)+1),1)
to randomly select a cell but how would I modify this to include cell weightings? Or is there a better formula?
An additional note I have is that the weighting for each person will always be changing, but will always be a percentage.
Random Number
Dec 10, 2006How do I make a row of 5 random numbers in A2:A6 that are not the same as each other. It's basically for a Bingo card. I have a formula that can calculate the random numbers =INT(RAND()*15)+1 under the B's for example, but I can't seem to figure out how to make it so they are not the same.
Random Number In VBA
Oct 13, 2009How can I make sure that I can generate random numbers that don't repeat using the rnd function in VBA.
View 14 Replies View RelatedRandom Number Between Two Numbers VBA
Jan 3, 2014I 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.
Random Number For Group
May 18, 2014How to generate random 50 number with 10 group..
View 6 Replies View RelatedHow To Generate Random Number Between 0.8 And 1.2
Jan 3, 2014Is it possible to use the =randbetween() function to generate a random number between 0.8 and 1.2.
View 4 Replies View RelatedRandom Number Counting
Sep 21, 2009If I generate a random number in cell A1 ranging from 1 to 3. Can I count how many times the result is equal to 2 if I was to run it 100 times and then show the results in cell A3.
View 9 Replies View RelatedCreate Random Number From 3-10
May 5, 2009I have a formula to generate a random number between 0 and 10.
View 10 Replies View RelatedRandom Number Select
Feb 5, 2007I need a macro that will select a random number between 1 and 6. ie select the number of a dice. It needs to input 1 random value into one cell and another random value into another. Like the dice values of a monopoly game.
View 9 Replies View RelatedGenerate Random Number
Oct 11, 2007is if there is a way to generate random numbers between 0001 and 9999. I always need to always have 4 digits. The first couple of numbers can be 0 so that I can maximize the number of variations.
MC W/Random Number Generation
May 4, 2006I 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.
Recalculating A Random Number
Jun 2, 2006I am using the data analysis add-in to generate a random number (using the random number generation) using a normal distribution. The problem is, i want it to recalculate these numbers every time the worksheet is recalculated but the numbers seem to be values only.
View 2 Replies View RelatedGenerate Random Number Between
Nov 28, 2006i have worked in access using vba procedures. i can easily create a form in access that generates a random integer number between 0 and 20 and the user will guess the number between 1 to 20 if the random number is 16 and the user enters 14 the program will display a msg box saying too low or too high. here is the code .
Option Explicit
Private Const MAX = 20
Private Const MIN = 1
Private iKey As Integer
Private lTries As Long
Private Function Random() As Integer
Random = CInt(Int((MAX - MIN + 1) * Rnd() + MIN))
End Function
Private Sub cmdGuess_Click()
Dim lGuess As Long
now i have to do the same thing in excel create a program that will ask the user to enter numbers between 0 to 20 and see if the random number and user guess is same or not. but i have never worked in excel using vba procedures how can i achieve the same thing in excel using a vba procedures.
Random Number On Specified Date
Dec 20, 2006I have a random number generater but it creates a new random number whenever I recalculate the sheet or enter something in another cell. I would like it to choose a random number once and not do it again until a condition, specificaly a date, is met.
View 6 Replies View RelatedTimer On Random Number
Aug 29, 2007how to put time delay on my program?
like it will generate again every 9 minute?
Private Sub CommandButton1_Click()
Dim x As String, i As Byte
Randomize
x = Format$(Int(Rnd * 1899) + 1, "0000")
For i = 1 To Len(x)
Me.Controls("TextBox" & i).Value = Mid$(x, i, 1)
Next
End Sub
Rule For Random Number To Be Picked Up?
Jun 24, 2014is there any rule for random number to be picked up? Any Rule, Any Formulae, Any Calculation Anything, Any authentic routine which may guess what would be the next random number? for example if first random number is 825587 then what would be the next?
View 4 Replies View RelatedHow To Start From Specified Number In Random Formula
Jan 5, 2014I have the following formulae to pick up a random number from 0 to 9999.
=TEXT(RANDBETWEEN(0,9999),"0000")
I want to start this random search from a specified number. for example if i press F9 it should show 3456 at first press and then onward.
Advanced Random Number Generation
Jul 29, 2009I 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?
