I need help to generate BIC values

I am stuck with wrtiting a code that can generate BIC vrs number of components plot from an excel file. I am wondering if anyone has experience and can share with me the code or any clue.

Answer 1

[Karanjot]

Hi Victor,

I understand that you want to generate Bayesian information criterion values for a given excel file and further plot them with number of components.

Please follow the below steps to do so:

1. Import the file to a table ‘T’ using the “readtable” function.

T = readtable('fileName.xlsx');

2. Calculate the BIC of each estimated model using “aicbic” function. Specify the sample size ‘numObs’, which is required for computing the BIC.

[~,bic] = aicbic(logL,numParam,numObs)

You can refer to the below documentation to know more about the “aicbic” function:

Information criteria - MATLAB aicbic - MathWorks India

3. Plot the BIC and number of components, you can use the “bar” function to plot them as bar chart.

bar(bic,numComponents)

MATLAB offers various functions for plotting data, you may explore other options

Types of MATLAB Plots - MATLAB & Simulink - MathWorks India

I hope this helps!

Regards,

Karanjot Singh

[Victor Wedia Sadongo]

thanks, i think it should work but i already figureout using Gaussian Mixture Models function.