Probability density function for a time series of pressure data

Hello Everyone,

I need to plot the probability density function for the data attached. I also attach reference pictures from a journal article. I am expecting similar results for the data attached.

Kindly help

Answer 1

[Ameer Hamza]

You can use histogram() with pdf normalization. However, your data points seem to have a different distribution

data = readmatrix('data.xlsx');
histogram(data(:,2), 50, 'Normalization', 'pdf')

[Naveen K S]

Thank-you for such a quick reply. This data was collected while conducting an experiment in the windtunnel. So how will I be able to determine the type of distribution? Are there any patterns that I should be looking for?

[Ameer Hamza]

Theoretically, there can be several different types of distributions that can be fitted to a given dataset. However, the actual distribution is usually a property of the process. You need to study the literature related to the wind tunnel experiment and see how the data is distributed for that process.