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.
