How to fit a (left) skewed distribution
62 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
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
1 commentaire
Kin Sung Chan
le 23 Avr 2020
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.
Réponse acceptée
Image Analyst
le 2 Sep 2017
Try fitting the max value minus your data. In other words, flip your distribution right to left.
6 commentaires
Maria Amr
le 2 Fév 2021
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
le 2 Fév 2021
Attach your data in a new question. In the meantime, see attached demos and adapt as needed.
Plus de réponses (0)
Voir également
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!