having problem with mvnrnd...

i'm having problem with the mvnrnd.. its when i run the coding, it says "Undefined function'mvnrnd' for input arguments of type 'double'".. the coding is below..i don't know if i'm overlook at certain part..help me please.. i'm new to Matlab.

    X1=mvnrnd(mu1,sigma,n1);

Answer 1

[Al Dente]

matlab is basically telling you that it can't find the function:

which mvnrnd

will probably result in: 'mvnrnd' not found

mvnrnd is part of the statistics toolbox, type 'ver' in matlab and see if you have it.

ver
% Stateflow Coder                                       Version 7.6.1      (R2010bSP1)
% Statistics Toolbox  <--                               Version 7.4        (R2010bSP1)
% Symbolic Math Toolbox                                 Version 5.5        (R2010bSP1)

[Nadhirah Jofri]

erm..ok, it seems like i don't have that Statistic toolbox.. thanks for the info...

Answer 2

[Roya Kakar]

I don't have Statistics Toolbox in my Matlab, how can I get it?

Answer 3

[Roya Kakar]

function p = mygmm(x1,x2, w1, mu1, sigma1, w2, mu2, sigma2)

assert(w1 +w2 == 1.0, 'The weights of the components must add to 1.0')

assert(all([w1 w2] >= 0 & [w1 w2] <=1)),

p = w1 * mvnpdf([x1 x2], mu1, sigma1) + w2 * mvnpdf([x1 x2] , mu2, sigma2);

end

By running the above code I get the following error message:

Not enough input arguments.