Unique Random Number Generator |
Unique Random Number Generator - Excel |
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Is there a (non-VBA) way to generate a given number of unique random numbers from a list of unique numbers?
Eg. Column A has an unspecified number of unique positive integers in it.
I want to be able to enter an integer in B1 (that is obviously less than the number of elements in column A) and have that many unique random elements from Column A listed in column C.
So for example, A1:A10 might have the numbers 1 .. 10.
The user enters the number 3 (say) in B1 and then 3 unique random numbers from column A are listed from C1:C3.
Thanks in advance.
Similar Topics
My question is:
Is there a way to check for duplicates, and then automatically add numbers to the duplicate values to make them unique? If so, how can this be done?
So that you will have this:
JohnSmith
JohnSmith2
JohnSmith3
JaneDoe
JaneDoe2
JohnAdams
JohnAdams2
JohnAdams3
JohnAdams4
I think I have done a good job in illustrating what I would like to be able to do, but if there is still something that is unclear, I will post whatever clarification is needed.
Thank you in advance for your help!!
I'm thinking there has to be a more automated way to discover the best unique key of existing fields and their data. I thought I'd post this as a challenge because I don't know the "right" (or better) answer.
Anyone have any ideas?
I'd like to do this in Excel, but I can't figure out how to have a randomly generating non-repeating macro with text values in cells.
So right now I have a column of 8 values and need matrix of 7 columns by 8 rows next to it.
I've found this thread that has one for numbers, but I can't figure out how to do it for text values...
http://www.excelforum.com/excel-prog...m-numbers.html
Thanks all!
Hoping someone can help me quickly as I'm pulling my hair out and have a deadline getting too close.
Been trailing the net and this board but can't work out how to do a simple variance.
How do I work out the difference between two numbers - including negatives.
If the numbers are all positive, it's fine as it's simply a case of A - B = C which is your difference. However, that doesn't work if B is negative.
I need a formula that would give the following:
First Number / Second Number / Difference
1 / 5 / 4
1 / -5 / -6
-1 / 5 / 6
-1 / -5 / -4
-5 / -1 / 4
Hopefully there's a simple function I've been missing.
Thanks in advance, R
i have a column of numbers that we extracted from a database as whole numbers. for instance, 30 should be .30 and 100 should be 1.00. when i try to increase or decrease the decimal point it doesn't allow me to convert it to those positions.
would any one have a tip of how i can easily convert this? there are over 2000 entries in my excel spreadsheet so to do it manually would take a lot of time/effort.
thank you!
James
For example my numbers are formatted like this: 1234 and I would like to add zeros to the end so it looks like this: 123400 (no decimal).
I would do it manually but I have a column of over 2000 different numbers.
Thanks for your help, you guys are great!
lets suppose my numbers a 1,2,3,4,5,6,7,8,9,10,11
I want to generate all possibilities of the 6 numbers. But i dont want duplicate series.. I mean 1,2,3,4,5,6 and 6,5,4,3,2,1 are duplicates.
ANY HELPS ARE GREATLY APPRECIATED
Random question i have a large Excel Workbook (which is protected) and has over five sheets on it - however one sheet has randomly decided not to scroll... yes i know sounds random! If i use the cursor and down arrows the selection just disappears off the screen.
The page will scroll if i filter by one field, but not if i select (All) for all filters.
All other worksheets scroll fine.
Any suggestions?
Thanks in advance.
Cheers Kaite
jumps way down the page to what appears to be a random cell. The one i
originaly typed in remains blank. spreadsheet was previously ok this has
just started to happen.
help please
thanks
i would like to know how to change english numbers to arabic number on excel
, where when i change the language from english to arabic the numbers didnt
changed it still in english
I am trying to make excel automatically add a leading zero to values which are 5 digits long;
i.e. number input is 15185, then excel automatically changes it to 015185.
If I put a Customer Number Format of 0##### it works, however, a user could put any length of number into these cells, and if the number is less than 5 digits I don't want a leading zero.
Is there any way of writing a small macro to sort this out.
The numbers would be input into range B16:223.
Many thanks,
Andy
Thanks for any help.
45Romeo
Im looking for a vlookup formula which will give me the maximum number from a list which contains multiple matches, i.e.
Lookup number 1 from column A, then give me the largest number from column B
example table:
A B
-----
1 5
2 2
1 11
3 2
4 5
the result would be 11
thanks all!
I am trying to understand why I can not use Ctrl+F to find data in Column B, yet I can find the data in Column A.
I have a worksheet that in column A has numbers, in column B, the following formula "IF(ISNUMBER($A1),$A1,"").
Ctrl+F will find numbers in Column A, yet not in Column B. Why is this so? What can be done to ensure Ctrl+F works in Column B?
format/cells/number from the category list. But it won't take, and stays
text-like. Any ideas?
Is there a way to enter a colon into a standard number to create a value that can be formatted into a 24 hour time value ?
eg a time is listed as 1345 with a general number format, and I want it returned as 13:45 witha custom format of hh:mm.
Other than creating a table and using a vlookup function, I am hoping there is a better way?
Darren
I am working with an Excel spreadsheet and saving it as a .csv file in order to upload to an application that parses out the .csv data as transactions. The system requires .csv files, so this is how I need to save my doc (with this extension). I have been successful at preventing Excel from coverting that long number into scientific format. I have saved as a TXT file, pasted the longer number and it displays correctly. That is all good. But I have to save as a .csv. So if I do that, close the Excel window, and then open again (as the .csv file), the numbers are back to being displayed in scientific format. I have tried creating an Excel doc from scratch and entering text in Text format, to see if this created a cleaner file. But again, the second I save as .csv, close the window and then open that file up again, that dang scientific format is back.
Does anyone have any idea of how to work around this? Once I have successfully gotten the numbers to display as the long-chain number, how can I get them to "stick" so that they don't revert back to scientific format when I reopen the file?
Thanks so much for your help!
Here's my question...I have a list of numbers and I want to know how many combinations (and what they are) of adding the numbers will equal an amount.
e.g.
List of Numbers
1
2
3
4
5
6
7
8
9
10
Amount to be reached = 12
These are some of the possible combinations to reach 12 :
2+10
3+9
4+8
5+7
3+4+5
6+3+2+1
Is there a function in Excel that will do this for me? I want to know which numbers (i.e. cells) can be added to reach 12. AND, if possible, colorcode the cells added for each combination.
Good luck and thanks!!