Generate boolean values given a probability

Hi,
I have to solve the following problem:
Generate a boolean value given that the probability of generating "true" is P
I didn't find many things on internet...I found the following class which seems to be perfect for my purpose
(see method binomial):
http://wordhoard.northwestern.edu/userman/javadoc/edu/northwestern/at/utils/math/randomnumbers/RandomVariable.html
The problem is that I cannot get this package...
Is someone able to help me?
Many thanks,
Gaia

private Random rnd = new Random();
public getRandomBoolean(double trueProp) {
return rnd.nextDouble() < trueProp;
}

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How to generate pulse during changing boolean value?

I need to generate short pulse during changing boolean value from 0 to 1. This pulse is needed to reset counter.
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Maybe sambody can give me some tips to do it in other way?
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Regards
Solved!
Go to Solution.

Rogal wrote:
I need to generate short pulse during changing boolean value from 0 to 1. This pulse is needed to reset counter.
I was trying with Event Structure with Value Change but I think that I did something wrong.
Maybe sambody can give me some tips to do it in other way?
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We assumed you wanted a pulse when a front panel button (boolean) was clicked.
I am still not sure just what it is you want.
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Hey,
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Hello,
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Edited by: Don Williams on Nov 23, 2011 7:22 AM

and the code after that:
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I get an error:
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Could anybody help me please?
Thank you in advance.
Edited by: nelpet06 on Nov 23, 2011 9:30 AM

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sunil907 wrote:
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SQL*Plus: Release 11.2.0.1.0 Production on Tue Jul 16 12:51:37 2013
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} // end classBut the rendering comes all wrong (a String saying true or false, not the expected checkbox from the default renderer) and also there is a weird flickring effect as this particular boolean column is editable (per table model, not show here)...
I can post the table model and the other renderer if needed (didn't want to put too much code on the question, at least initiallty).
Should I render a checkbox myself for this cell in the custom renderer? I'm puzzled as I expected the default renderer part of the code to do this for me instead.
Thanks!
Edited by: josevnz on Apr 14, 2009 12:35 PM
Edited by: josevnz on Apr 14, 2009 12:37 PM

camickr
Thats because the default render is a JLabel and it just displays the text from the toString() method of the Object in the table model.What I meant to say is that I expected the JCheckbox not a String representation of the boolean value.
Thats because a different renderer is used depending on the Class of data in the column. Look at the source code for the JTable class to see what the "default >renderer for the Boolean class" is. Then you can extend that or if its a private class then you will need to copy all the code and customize it.At the end I looked at the code and replicated the functionality I needed. I thought than maybe there was a way to avoid replicating the same logic all over again in order to implement this functionality. Good advice, though.
see you learned nothing from your last posting. This is NOT a SSCCE. 90% of the code you posted is completely irrelevant for the described problem. There is abosutelly no need to post the custom TableModel, because there is no need to use a custom TableModel for this problem. The TableModel has nothing to do with how a column is rendererd.The custom table model returns the type of the column (giving a hint to the renderer on what to expect, right?) and for the one that had a problem it says than the class is Boolean. That's why I mentioned it:
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You also posted data for 4 columns worth of data. Again, irrelevant. Your question is about a single column containing Boolean data, so forget about the other columns.
When creating a SSCCE you don't start with your existing code and "remove" code. You start with a brand new class and only add in what is important. That way hopefully if you made a mistake the first time you don't repeat it the second time.That's what I did, is not the real application. I copy & pasted code in a haste from this dummy program on this forum, not the best approach as it gave the wrong impression.
Learn how to write a proper SSCCE if you want help in the future. Point taken, but there is NO need for you to be rude. Your help is appreciated.
Regards,
Jose.

AudiCLip.play should return a boolean value

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Generate boolean values given a probability

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