Making It Random (getting Random Numbers)
I just wanted to know whats the best way to generate 50 or say X amount of number at random without having to repeat any of the previous number...
so far I've the following:
[VBS]<%@LANGUAGE="VBSCRIPT" CODEPAGE="1252"%>
<%
function RandomNumber()
dim theRandom
Randomize
'RandomNumber = Int((upperbound - lowerbound + 1) * Rnd + lowerbound)
theRandom= Int((99 - (0) + 1) * Rnd + (0))
if (theRandom<10) then theRandom = "0" & theRandom
RandomNumber = theRandom
end function
%>[/VBS]
and then I've this in the body of HTML doc: Code:
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I have a problem creating random numbers. I basically have this
Randomize()
iRandom = Int(10 * Rnd + 1)
If I do not wait a few sec before hitting the page again it will create the same random number as generated a few seconds before.Any idea why it is like that? Another way to reprocess the "bug" is to just fit F5 few times in a row and you end up with the same number being generated. Its annoying and I need some help to "fix" it!
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I am trying to generate a random number between 1 and 100 into a label, using c#....
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I am developing a online test application(multiple choice ques) So for that i need to shuffel the questions randomly. eg there will be 60 Questions in total. If say 50 users are connected to it, all will be having same 60 questions but its order should be different.
i am using below code to randomly generate questions numbers but the problem with this code is it is repeating the number.I want to generate non repeatable numbers. Can anyone help me out to do it.
Dim my_num,max,min
Dim i
i = 0
max=60
min=1
For i = 1 to 60
Randomize
my_num=int((max-min+1)*rnd+min)
Response.Write my_num & "<br>"
Next
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I know thats theres already a few posts about this subject but I need to create 3 random numbers of any size, I've used the following code -:
randomnumber1 = int(rnd*9)+1
randomnumber2 = int(rnd*9)+1
randomnumber3 = int(rnd*9)+1
but it always returns, 7,5 and 6..
Not very random as you can see
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I have 30 numbers. I need to select randomly 10 out of the given 30. A number must not repeat ( eg. i can't have number 10 twice ). How can i do this??
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I have a code to create a random string of letters. The number of them can be whatever I desire.
what i would like to do, is have it both letters and integers. how would inmodify this code to allow that ....
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I am trying to create a random value between 10 and 1,000,000. I am using the following code but it is creating numbers between 10,000 and 999,999. How can I fix it.
<%
Highest=1000000
Lowest=10
Randomize
Val_Rand=CStr(CLng((Highest-Lowest+1)*Rnd+Lowest))
response.write(val_rand)
%>
The code never gives small numbers like 10, 15 500, 250, 257 etc.
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I am using DreamweaverMx to create a football website that stores players to a databse and when they join a game there is a function to randomize a number for each player and store it on a second databse and from the database using sql to link my databases together so that a players details are posted on a page of my website.
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I have this situation:
each user has some amount of points, for example:
table:users
user_id --- user_name --- points
1 --- user1 --- 100
2 --- user2 --- 100
3 --- user3 --- 100
4 --- user4 --- 200
5 --- user5 --- 500
-------------------
total points: 1000
I want to generate random selection of user, according to their points respectively, so the more points he has, the more likely he will be selected:
user1 in 10% cases
user2 in 10% cases
user3 in 10% cases
user4 in 20% cases
user5 in 50% cases
this percentage is respective to their points; I put some rounded numbers in the example - so total points of 1000 equals 100% - but they can have any amount of points: 1, 200, 3672 etc.
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I’m having problems on how to randomiz numbers and delete the ones that have been displayed.
My first step is to take some numbers:
21, 32, 35, 4, 15 and randomize theese so the ouput may look something like this:
35, 21, 15, 32, 4
My second step is to display the first number (35), then when a user clicks on a link I want the second of my random number (21) to be displayed and I also want to delete the first number (35) that has been displayed. And this routine (display number, delete previous number) should continoue untill there is no more numbers. So again, I wnat to step through all my random numbers and delete the ones I have displayed.
Example: ....
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not after code, just thoughts, suppose i'm generating a random 8-digit pin number for our clients, first i'll be checking against the db to see if it already exists before assigning it. what i might do for that is getstring all of the exsiting pins at the top of the script and just keep performing an instr until i get a 0. (i dont expect to ever go above a thousand clients for this system and hopefully my initial number will be random enough that these checks are for backup/redundancy assertion anyway)
but anyway, the main problem is: i dont want to generate a random pin that is one (or maybe two) digit(s) different from another,. i.e.
11111111 is too close to 14115111 and much too close to 11111811. 11121111 is right out of the question as it can be entered as a typo, as is 11111411 because of the numpad
so i'm after thoughts on how to perform that check, i suppose if i went with the "big string of all pins that went before" check i could perform a number of regex searches on the string. i.e.
my pin is 12345678 and i dont want ony to be one digit different so i'd check the string against .2345678 1.345678 12.45678 and so on. think i just answered my own question, anyone else got any ideas? especially for the two digit case (dont want to be performing 36 regex checks do i!)
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I am trying to write an array of random numbers to a database. The array part is working fine, but when I go to update the dataabse, it inserts the last value of the array into all the fields in the database .....
Dim MyValue,sqlRandom
Dim arrayRandom(8)
for i = 1 to 8
Randomize
MyValue = Int((100 * Rnd) + 1)
arrayRandom(i) = MyValue
response.write "<p> Array Value:" & arrayRandom(i)
sqlRandom = "UPDATE CarParkDetails SET FreeSpaces = '" & arrayRandom(i) & "'"
Conn.execute(sqlRandom)
next
I can't see whats wrong!
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I need to generate three random numbers between 1 and 100, but they need to be different.
e.g. 3,43,88 would be fine but 5,76,76 would not.
The function I have to generate a single random number is:
function funRandomNumber(intHighestNumber)
randomize
funRandomNumber = int(rnd * intHighestNumber) + 1
end function
called by: funRandomNumber(100)
Can anyone see how this can be modified to do what I need?
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However, what I want to do is include a request.querystring("ID"), so that IF an ID is defined, eg ID=3, , it will display the relevant (not random) information. I've tried this every way I can think and get type mismatches, etc etc. It's probably really simple but I can't see it.
<%
limit=3
redim link(limit)
redim image (limit)
link(1)="xxx"
image(1)="image1.jpg"
link(2)="xxx"
image(2)="image2.jpg"
link(3)="xxx"
image(3)="image3.jpg"
randomize
random=int(rnd*limit)+1
%>
<center>
<a href="<%= link(random) %>">
<img src="<%= image(random) %>" border="0"></a>
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We have the need to have a random token (a 16 char alphanumeric field) to be used as the key for one of our SQL tables. I have created a random token generator, however after only 3 months in production, it appears that we had an instance where a token that already existed in the tables was created. There are 3810 records currently in the database so it isn't like there are billions of records there.
I contacted an old college buddy of mine who is a mathematician, and he claims, assuming that random really does mean random, that the chances of getting a duplicate token are 1 in 79.5 septillion (79,500,000,000,000,000,000,000,000).
So my conclusion is that this was either a complete freak of nature occurance, or my random generator isn't really all that random. Here is the code behind how I am generating this: Code:
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I am trying to generate a random number. I am using randomize and then rnd to return a decimal number between 100 and 120. This will give me a longitude. I am doing something similar to generate a latitude.
I created this on a page which refreshs every minute. I put these points into a map and they are showing up in groups of straight lines. Since rnd is time based will refreshing every 60 seconds return similar numbers?
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I want to display data of a Random Member on my page.. and I did a search in these forums and I tried to do this:
[CODE] SELECT tblMiembros.*, tblDatosPersonales.*
FROM tblMiembros, tblDatosPersonales
ORDER BY rnd(isnull(tblMiembros.ID_APLICANTE) * 0 + 1)"[/CODE]
This doesnt throw any errors. but it always displays the same row... (first in database)
am I doing something wrong? am I missing something?
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I have a client asking me about random images on his site, basically I am using the following code:-
<%
RANDOMIZE
Response.write("<IMG SRC='../gfx/bg-img0" & INT((3)*RND()) & ".jpg'>")
%>
Agreed its not the best code, but he is finding that the same image could be repeated like three times in a run.
I have an include file which displays the image, and the random script is placed inside that include. So when he is going from page to page this is where the issue lies.
Can anyone help me out here, is it even possible to have a different image load each time, and not have them repeating.
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I am using random number to be used as a unique identifir. Since random numbers are in decimals I am using going to convert it into an integer and since I need to append this Id into my URL, I am converting it into a string. SO my formula looks like this.
CStr(Int((Highest-Lowest+1)*Rnd+Lowest))
S0 now every time a new record is generated would this formula generate a unique number for unique identification in the table. I can't see how it can do it. Say A user is assigned a random number; then another user subscribes so how would the server determines that the random value assigned to next user is not already assigned to any other user.
In case if this can't work (a unique ID for every user) then I'll stick to this very same formula and after the random number is generated, I'll check this number with the table in the database and see whether it's been assigned already. If yes, I'll request another random value, if not then I'll go with it. Is this the right strategy?
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I have done random image display with the help suggestion from this discussion form. now I want to provide link on each image. i.e. all the images display randomly, should have different link. is it possible? if yes, how?
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is there sombody who can helpme witht he following, i am ''pretty new'' to
php and am looking for a script to show images randomly at a 10/ 15 seconds
interval. is there anybody who can help me with this or does know where to
find a good template script for this?
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example:
When u see some sites ,
the advetisement images are changing ,
when ever the browser is refreshed...
.....
like tha i want to do that.....
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I have the below ASP function to display a random image from a folder.
<%
Function RandomImage(strPath)
Randomize()
If Right(strPath, 1) <> Chr(47) Then strPath = strPath & Chr(47)
strPhysical = Server.MapPath(strPath)
Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
Set objFolder = objFSO.GetFolder("C:Inetpubwwwrootpag-siteimages
andoms")
Set objFiles = objFolder.Files
For Each objFile in objFiles
strFile = LCase(objFile.Name)
strFiles = strFiles & strFile & vbTab
Next
strImages = Split(strFiles, vbTab)
If UBound(strImages) > 1 Then
RandomImage = strPath & strImages(Int(Rnd(1)*UBound(strImages)))
End If
End Function
%>
and this places the image in the HTML
<img name="Intropic" src="<%=RandomImage("images/randoms/")%>" width="211" height="158" alt="" />
but sometimes the script places a ._ before the image file name in the outputted HTML?
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I'm afraid I have a technical problem here. Basically what happens is that I'm getting some random errors(like Type mismatch... etc) that shouldn't under normal circumstances occur. Then I connect to my server via remote desktop and Recycle the application pool on which my asp pages run. Errors then disappear
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I have a file where i want to call a random asp file using the "include file" statement. I know it can be done with images, but can it be done with other asp files? and how?
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I want to take 3 records from a database. The selection must first take any record marked as priority and then random records (so there could be 3 priority records and no more or 1 priority and 2 random etc)
My theory is to build a recordset filtered by records marked priority, and if there are less than 3, build a second recordset of all the other records.
Questions
1, how can I select random records form the second recordset, without selecting the same one twice?
2, OR, could I write a sql statement which would randomly select 3 records from my table
3, Or is they a way I could write a query (view) in Access which would do the whole lot for me (select the priority records and then random records up to 3)?
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I set up a random code for people registering with my site.....
letters="1234567890abcdefghijklmnopqrstuvwxyz"
for i=1 to 16
Randomize()
rNum=Int(Rnd()*36)+1
code=code&mid(letters,rNum,1)
next
but for some reason it sometimes saves code as an empty string. When I register a fake name, ie zzz, it seems to work fine, but for some of my members is saves as an empty string.
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trying to get a random number from 0000 to 9999, is there an easy way to do this? i'm using this for a unique filename and want it to be 4 digits from 0000 to 9999.
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How do i produce a random string.anything from A-Z or a-z or 1-9 for the password.how do i do that
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i have a db where ± 15 users stores multiple second hand items with images. Now i wish to display on the openingpage a list of all users with 1 item + image. So far no problem.
But now i wish to change the order of the users every time the pages open.
How can i shuffle the recordset before i load the users in a array, or how
can i shuffle the array after populating with the users? Code:
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I'm trying to sort a list of 10 people into two groups--RANDOMLY. I've gotten as far as to generate a random number and assign a name to it. I just need to know how to generate 9 more numbers, making sure no numbers/names repeat. Code:
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I have a DB with 10 items and an SQL statement:
"SELECT * FROM myTable WHERE Activate=true"
How do I make it so that every time the page refreshes it will display a random record?
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