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How to generate a Bernoulli distributed binary data

Asked by Mallikarjuna

Mallikarjuna (view profile)

on 1 Jul 2013

Hi, I am trying to generate a Bernoulli distributed binary data. please help.

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Mallikarjuna

Mallikarjuna (view profile)

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2 Answers

Answer by Wayne King

Wayne King (view profile)

on 1 Jul 2013
Edited by Wayne King

Wayne King (view profile)

on 1 Jul 2013

Do you have the Statistics Toolbox?

You have to specify the parameter for the distribution, which is the probability of a "success". Here I'll use p = 0.25

     pd = makedist('Binomial','N',1,'p',0.25);
     x = random(pd,100,1);

If you want the simple case where p = 0.5

x = randi([0 1],100,1);

1 Comment

Mallikarjuna

Mallikarjuna (view profile)

on 2 Jul 2013

I am getting an error saying, 'makedist function is not supported'! Is there any other way of doing it without using the statistics toolbox?

Wayne King

Wayne King (view profile)

Answer by Shashank Prasanna

Shashank Prasanna (view profile)

on 2 Jul 2013

You probably have an older version of MATLAB installed.

Try the following instead:

http://www.mathworks.com/help/stats/binornd.html

Check the output of 'ver' command to confirm you have the statistics toolbox.

If not there is always FEX:

http://www.mathworks.com/matlabcentral/fileexchange/7309-randraw

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Shashank Prasanna

Shashank Prasanna (view profile)

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