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PDF (Probability Density Function) of a 2D matrix of values

Asked by matnewbie on 9 Nov 2015
Latest activity Answered by Tom Lane
on 11 Nov 2015
I have a 2D matrix of values in .csv text file format (see the file attached) and I want to make a plot of the PDF (Probability Density Function) of these values. How could I do this? Thank you in advance.

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1 Answer

Answer by Tom Lane
on 11 Nov 2015
 Accepted Answer

If you have your data in the matrix M and you want to ignore the zeros and the relative locations of the values, you could try
histogram(M(M>0))
If you want to fit a distribution such as log-logistic, you could try
p = fitdist(M(M>0),'loglogistic')

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