Mary A. Marion

3 Questions 5 Answers 0 Followers

Questions related from Mary A. Marion

How to find 3 initial parameters for gompertz curve in presence of other predictors

Given the following when fitting a three parameter gompertz curve to a predictor xg(x) = alpha * exp(- gamma * exp(- beta *x) ) I need to know whether gamma is equal to the inflection point of...

14 May 2017 3,005 11 View

How to find initial parms estimates when doing nonlinear analysis?

proc NLIN data = eleven BEST = 10 MAXITER = 100 METHOD = Gauss CONVERGE=1.0E-6 LIST ALPHA = 0.05 OUTEST = outest(where = (_TYPE_ = "COVB")); parms B1 = 1 B2 = .5128 B3=-.0036; model y =...

27 March 2017 2,350 5 View

How to find MLE estimator of a poisson pmf ?

X~Poi(lambda) and Y~Poi(2*lambda). X and Y are independent. I am to find MLE estimator of lambda. I am forming the joint density and extracting marginal for X. Is this necessary? I know f(x).

06 February 2017 4,176 7 View