How to fit a (left) skewed distribution
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Hi,
Currently, I am using the following code to fit distributions to my data:
pd = fitdist(mydata,distribution)
x_values = 1:1:26;
y = pdf(pd,x_values);
plot(x_values,y,'LineWidth',2)
However, as far as I can see all the distributions offered by Matlab are either not skewed or right-skewed. Hence my question: Knowing that my data is left-skewed, how could I fit such a distribution to it?
Thanks
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Kin Sung Chan
2020년 4월 23일
histfit(mydata/max(mydata), 30, 'beta'); % let's say using bin = 30.
However, even though it can produce a fit, the 'beta' requires your data to be within 0 and 1.
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Image Analyst
2017년 9월 2일
Try fitting the max value minus your data. In other words, flip your distribution right to left.
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Maria Amr
2021년 2월 2일
I have the same problem but my data are right skewed. Would you please direct me how to fit a right skewed distributions? Thank you!
Image Analyst
2021년 2월 2일
Attach your data in a new question. In the meantime, see attached demos and adapt as needed.
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