Kernel density estimates....group data into bin and KDE

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alberto caracciolo
alberto caracciolo 2019-2-28
回答： Jeff Miller 2019-2-28
Hi,
I'm a beginner in matlab and I need to make Kernel density estimate curves.
The only thing I have is one column with my data (e.g a txt file that I attach). What i would like to do is:
  • make a KDE with these data. I think first i need to group my data into bins (right??). If that is the case, I would like bins from 0 to 8 at intervals of 0.5
Could you help me with the code?
Thank you

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回答（1 个）

Jeff Miller
Jeff Miller 2019-2-28
No, you don't need to make bins. This might give you a start:
Pressure = importdata('Pressure.txt');
kernest = fitdist(Pressure,'kernel');
x=0:0.1:5;
kernpdf = kernest.pdf(x);
histogram(Pressure,'Normalization','pdf')
hold on;
plot(x,kernpdf

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