Probability Density Function ??

i have Excel data. there is two line. one is about time. an other is about velocity.

how cna i get Probability Density Function ?

could you help me? about code...

Answer 1

[Dimitris Kalogiros]

First you have to import data from your excel file

After that, you can calculate your PDF function, following this example:

clear; clc; 

%data
x=randn(1,50000);

%calulation of PDF
[pdfValues,edges] = histcounts(x, 'Normalization', 'probability');
xIntervalCenters=(1/2)*(edges(1:end-1)+edges(2:end));
pdfValues=pdfValues/(edges(2)-edges(1));

%plot Probability Density Function
figure; 
plot(xIntervalCenters, pdfValues); grid on; zoom on; 
xlabel('data value'); ylabel('pdf');

Of course, in the this example, I had to produce some data ( x=randn(1,50000) ). Instead of x , you can use your imported data.