Random Number Within Normal Distribution
Nov 27, 2007I would like to create a random number based on that data.
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Random Number With Normal Distribution
Jul 19, 2006in VBA the RND function generates a random number using uniform distribution (every number is as likely as any other). Is there a function to generate a random number using normal distribution where the numbers closest to the mean are more likely to occure then numbers further away from the mean. I've created the following custom function to generate a random number between two given values using uniform distribution.
Function RandNum(Min As Double, Max As Double) As Double
RandNum = (Max - Min) * Rnd + Min
End Function
Positive Random Number Generator From Normal Distribution
Oct 29, 2009
I would like to get random number generator for normal distribution and I’m using:
=NORMINV(RAND(),$B$1,$B$2)
Where B1 is mean (average) and B2 is SD.
This command works, but in the random generating numbers, I’m getting positive and negative numbers (ex. -23,34).
how to change command so I can generate positive only numbers?
Is Random Normal Distribution Possible
Jul 18, 2007i have some number that i want to put in a normal distribution
so.. i have age ( 1, 2, 3, 4, 5, 6, 7, 8, 9, 10) and have the number of times that the kid wake in the night ( 10, 12, 9,11,8,9,7,9,11) and want to do the normal distribution grafic with that .
Random Value Generation From Skewed Normal Distribution
Sep 20, 2008I 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: ...
Generating Multiple Random Number Sets With Even Distribution?
Oct 14, 2011I've managed to write a random number generator that produces multiple sets with no repeating numbers per a set.
Now, to step it up a notch, I'm trying to create an even distribution of the numbers generated which is where I could use a hand. Here's my current code:
Code:
Option Base 1
Sub RandomNumberStrings()
Dim rndno As String, strg As String, msg1 As String
Dim r1() As String, r2() As String
[Code]....
Equaling 500 numbers generated as intended, but my target is to get every number with an equal frequency.
Random Number Generator Based On Weibull Distribution
Sep 10, 2007how to go about generating random numbers based on Weibull distribution in VBA? I had a rough idea for Normal (from link below) which i later extended to Lognormal but am having difficulty with Weibull and Gamma will appreciate any help.
http://www.devx.com/vb2themax/Tip/19233
NORMAL DISTRIBUTION
Oct 24, 2005I know EXCEL has functions for both the NORMAL DISTRIBUTION and the
cumulative value thereof...
but is it possible to graph this data..
(I imagine if I sort the data and then calculate the ***. distributions into
a column...then chart it, it should work; BUT IS THERE ANOTHER WAY?)
Normal Distribution Graph
Nov 16, 2006Say I measure the height of 1000 people and I have those in a column in excel. It should be a normal distribution with mean x and standard deviation y. How do I actually graph it so I can see the normal distrubution curve that looks something like this:
[url]
I tried making a scatter graph but it graphs them point by point. I want the height to be on the x axis and something like frequency on the y axis.
Normal Distribution Chart For Set Of Data
Feb 22, 2014How to crate a chart for normal distribution for a set of datas. say marks of students/ number of students in a class
View 1 Replies View RelatedProbability Density (normal Distribution)
May 11, 2014I'm trying to make a bell curve (normal gauss distribution). I have some problems regarding the probability density curve, since its values are so low. If you look column N in the attached file - I used the NORMDIST command. Values should be somewhere between 0,2 and 0,4 - but they're about 100x lower.
View 2 Replies View RelatedUsing VBA To Open Another Excel File And Do Normal Distribution?
Jun 3, 2014I saw one of my classmates do quick normal distribution by the click of a button and when I asked her she said she used VBA function of Excel.
This is what I would like to do: Have a macro/VBA in one excel file. And using that excel file do normal distribution for an excel file that's opened in another window.
Calculate Critical Values For Normal Distribution
Dec 4, 2007I have weird alpha value like 14.385%, a sample size (36). What is the corresponding critical value for the normal distribution. There are questions like this dealing with the Student T dist, Chi Squared and F distribution. If i can figure out how to do it for one I can probably do it for all of them.
Random Distribution/Allocation
Nov 1, 2009I have a spreadsheet which has a list of staff (column B) and work categories (row 3).
Row 4 is updated each day with a count of the incoming work for each work category.
I want to be able to randomly distribute (as evenly as possible) the no of work items in Row 4 between the doers (B7:B13). Each item of work also has to be checked so I would also like to randomly distribute the checking between the checkers (B16:B18)....
Converting Number With Space Into A Normal Number
Jan 2, 2010I have to use data copied as text from a webpage. Some numbers stay with spaces so are recognized as text I think i.e. 3500 will be "3 500".
I think there was a formula to convert that into number or any other way ? Couldn't find it on the forum so far :/
Currency To Normal Number
May 30, 2007I have a value say £11.50 what i need is for this to be turn in to 1150 no point.
When i try on excel i get it to 115
Change From Serial Number To Normal Format
Jan 5, 2009I have been trying to type a date in a column in MS excel. But excel always reads it as a serial number.
How Can I get it to display the date as it is in date format. I have the next column formatted/ formulated to display the day of the date in the previous column.
How To Calculate Even Distribution Between Two Values Over A Set Number Of Columns
Feb 17, 2014I am in need of a formula to calculate the even distribution of values between two set values over a set number of columns. For example take a look at the attached screenshot. I have the numbers 2.88 and 2.44 and I need to fill in the empty cells between the two with with an even distribution of numbers in between the two (in descending order) over the 8 columns Screen-shot-2014-02-16-at-3.33.08-PM.jpg
View 1 Replies View RelatedDistribution Functions; Know The Each Number's Rank Within The Range
May 16, 2006I don't know anything about the distribution functions, but I have a range of numbers and I need to know each number's rank within the range. I believe that's related to distribution, so if someone could tell me how to go about calculating that (with or without those particular functions)
View 3 Replies View RelatedRandom 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.
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...)
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.