Hi there,

I am a new user to R.

Could anyone explain me how to define the quadratic trends for the parameter mu/sigma/shi,
when fitting non-stationary GEV distributions?

That is the mu/sigma/shi has a quadratic trends as follows:

mu(t)=beta0+beta1*t+beta2*t^2

sigma(t)=alpha0+alpha1*t+alpha2*t^2

shi(t)=delta0+delta1*t+delta2*t^2



Thanks


Best Regards,

Mohammad Ashrafuz Zaman
PhD Candidate
School of Engineering
Building XC, Room 1.02 (Kingswood Campus)
University of Western Sydney
Locked Bag 1797, Penrith South DC
NSW 1797
Australia
Tel: 61-2-4736 0398
Mobile: 61-4-30977440
Email: m.zaman@uws.edu.au<mailto:Muhit.Rahman@uws.edu.au>


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