Assign Beta distribution to set of integers
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summyia qamar
el 14 de En. de 2018
Editada: John D'Errico
el 14 de En. de 2018
I have a column vector
x=[6.1000
9.4000
8.1000
3.2000
6.5000
7.2000
7.8000
4.9000
3.5000
6.6000
6.1000
5.1000
4.9000
4.2000
6.4000
8.1000
6.0000
8.2000
6.8000
5.9000
5.2000
6.5000
5.4000
5.9000
9.3000
5.4000
6.5000
7.4000
6.0000
12.6000
6.8000
5.6000
6.4000
9.5000
7.2000
5.6000
4.7000
4.5000
7.0000
7.7000
6.9000
5.4000
6.3000
8.1000
4.9000
5.3000
5.0000
4.7000
5.7000
4.9000
5.3000
6.4000
7.5000
4.4000
4.9000
7.6000
3.6000
8.3000
5.6000
6.2000
5.0000
7.4000
5.2000
5.0000
6.5000
8.0000
6.2000
5.0000
4.8000
6.2000
4.9000
7.0000
7.7000
4.7000
5.0000
6.0000
9.0000
5.7000
7.1000
5.0000
5.6000
4.9000
7.8000
7.1000
7.1000
11.5000
5.4000
5.2000
6.1000
6.8000
5.4000
3.5000]
I want to apply Beta distribution to the data but I cnt get any reasonable answer from matlab documentation. I tried fitdist but it didn't work. neither distributionfitter app help in these distributions. can anybody explain me this?
2 comentarios
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John D'Errico
el 14 de En. de 2018
Editada: John D'Errico
el 14 de En. de 2018
These are not integers anyway.
But what stops you from normalizing them so they lie in [0,1]?
xmin = min(x);
xmax = max(x);
xhat = (x - xmin)/(xmax - xmin);
[PHAT, PCI] = betafit(xhat)
PHAT =
0.15292 0.39984
PCI =
0.14753 0.35227
0.1585 0.45383
So a beta distribution that lives on [xmin,xmax].
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