any detailed for a m-file coding ?
any detailed mathematical document
ok ... what do you want , an implementation of Gamma measurements , if yes I can try coding ...
I want to develop a model for prediction of rainfall based on three predictors.
y=f(x1,x2,x3)+r
Ok Farhad , give me a week's time , will give a code with Gamma distribution profile for 3 variables !!!
Hello Farhad,
Attached is the probability distribution (Gamma) that changes by 2 factors (shape and scale) + actual data . I have used constants as vectors and used gampdf ( ) . It takes the rainfall data and uses the shape and scale factor to give a pdf.
Attached : output profile , script and the paper I looked into .
As far as I understood , the shape and scale should be empirical while data should be recorded data .
This is not prediction , we can predict based on gamfit () for which there is a need for data set . It is a function for gamma regression or we can use linear regression too.
Dear Aparna
Thank you for your time . but the model you prepared can not be used for prediction. anyhow, it was useful to me
Yeah I did not prepare the model , for prediction I want data Farhad . Like using the regression model (gamfit) . Also I do not know how rainfall (in cm ) is affected by shape and scale factors.
May be it is a starting point ...
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