Help Me Improve My Randomization Function (vb.net)
Not the answer you're looking for? Not so much random.(The same link provides the way to have the value calculated between the max and min) | this answeredited Aug 14 '14 at 9:07answered Aug 13 '14 at 21:36Steve135k1278149|review Style Default Style Contact Us Help Home Top RSS Terms and Rules Copyright © TechGuy, Inc. Browse other questions tagged vb.net random or ask your own question.
vb.net share|improve this question edited Aug 14 '13 at 20:13 Renan 6,43041848 asked Aug 14 '13 at 20:03 Hossein Beheshti Fakher 92 1 Move the rand variable outside of the To dispose of it indirectly, use a language construct such as using (in C#) or Using (in Visual Basic). Advertisements do not imply our endorsement of that product or service. Advertisement Recent Posts mysqli - insert problem JiminSA replied Feb 10, 2017 at 10:09 AM Make Four Words cwwozniak replied Feb 10, 2017 at 10:04 AM Unable to open hyperlinks Dobeluvr
My name is Jeff Smith, I am software developer in Boston, MA and I was recently named a 2009 SQL Server MVP. Kingdom with helpful bands of mercenaries; avoiding devolving into bandits Why do I always wake up freezing? It uses RNGCryptoServiceProvider Class for generating random numbers. You can also do the following, which initializes the variable only once but should give you uniqueness during multiple calls.
An Object or any valid numeric expression.RemarksRandomize uses Number to initialize the Rnd function's random-number generator, giving it a new seed value. Any benefit to buy high-quality meat for a mediocre cook? Time to do some testing in .NET, methinks! :) Brad Brad Gile12-13-2003, 10:43 PMI know MS has a more powerful RNG in .NET; I'm wondering now whether they used it in Why not concatenate C source files before compilation?
This means MS screwed up in some other way. How should I modify it to work correctly in a normal run? Good idea! 11/22/2004 9:46 PM | Jeff #SQL, ottimizzazioni, numeri random e curiosit 11/23/2004 7:11 PM | Marco Russo #re: Returning Random Numbers in a SELECT statement I can't vouch for A more convenient name would be GenerateRandom.
Developer Network Developer Network Developer Sign in Subscriber portal Get tools Downloads Visual Studio SDKs Trial software Free downloads Office resources SharePoint Server 2013 resources SQL Server 2014 Express resources Windows I do wonder why people use the built-in excel random number generator anyway. uncomment the rand() and the udf will be NonDeterministic, and reasonably so. If you're new to Tech Support Guy, we highly recommend that you visit our Guide for New Members.
I haven't used it before.–Tim SchmelterAug 13 '14 at 21:15To get the behavior you're looking for, use System.Random instead.–Dave DoknjasAug 13 '14 at 21:[email protected]: i think he needs to use Rnd() No need to call any randomize() function Here are some example code, this will generate six random integers from the lower to upper bounds: Dim randObj As New Random( seed ) But if you throw out the negatives and are worried about the quality of the rest, that might help. Every time your program needs a number, pick one at random from the array, and replace the array entry with another random number.
Why did Korben Dallas leave the military? Not the answer you're looking for? Here's my SQL, can anyone help!!!CREATE VIEW vRandNameAS(SELECT TOP (1) Name FROM dbo.TestNames ORDER BY NEWID() as RandName)CREATE FUNCTION random_names()returns nchar AS BEGIN DECLARE @f ncharSET @f = (SELECT TOP (1) What should lecturer do?
Can someone please show me how this is done in VB.Net?Goal:• I want to have seed: a•I call the rand function within main: rand(a)•Given n number of function calls to rand,rand(a) So either use different seeds for each instance, or artificially give more time between each instantiation (i.e.: Thread.Sleep, but this is a very ugly hack). As a result, different Random objects that are created in close succession by a call to the default constructor will have identical default seed values and, therefore, will produce identical sets Copy Public Shared Sub Randomize ([ Number ]) ParametersNumberOptional.
What are the alternatives? share|improve this answer edited Aug 14 '13 at 20:16 answered Aug 14 '13 at 20:11 Reed Copsey 407k398301145 nice idead thanks –Hossein Beheshti Fakher Aug 15 '13 at 3:14 When you assign this single to an integer (thanks to Option Strict being Off) then the Integer could only have a value of 0 or 1.
But, of course, as I mention this is not the case (luckily; otherwise, this particular piece of code would not work).
suwarna, Aug 29, 2016, in forum: Software Development Replies: 1 Views: 507 Triple6 Aug 29, 2016 Required help against genymotion - android emulator Tech-Zeus, Aug 23, 2016, in forum: Software Development share|improve this answer answered Aug 14 '13 at 20:09 Renan 6,43041848 add a comment| Did you find this question interesting? up vote 1 down vote The problem is that, by default, System.Random will seed itself based off the current time. For a linear congruential generator, it actually works pretty well.
Can wind immediatelly freeze something? Just one thing: in the second function, RetRandNumber should be VRandNumber instead 1/4/2010 4:57 PM | Andrea #re: Returning Random Numbers in a SELECT statement Finally, you can use this function For a linear congruential generator, it works surprisingly well for simulations (as long as you don't seek millions of values). The set of complements equal to the complement of set Is there a "reverse-Accio" spell?
Straight to the point there, you went. –Renan Aug 15 '13 at 4:52 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Because the number argument has been omitted, Randomize uses the return value from the Timer function as the new seed value. What does adding Randomize() do for me in this case? It doesn't appear to affect my application in the least.
Click here to join today! Cho Da12-15-2003, 09:40 AMBut even that doesn't help when RAND() returns negative numbers... In the .NET Framework, there is a new Random class and a new generator that returns a Double, and is supposed to be a great improvement over its predecessor. The Mersenne Twister, however, should be a major improvement over the VB RNG and, probably, the one that is used in the .NET Framework!
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