Mary A. Marion

3 Questions 8 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...

05 May 2017 359 9 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 =...

03 March 2017 5,946 6 View

How to show that 2*( x^2+y^2) >= (x+y)^2 ?

I am not sure how to answer my own question on the researchgate website. The solution is really trivial. My question: how to show that 2*( x^2+y^2) >= (x+y)^2 My solution: 2*(x^2+y^2) >=...

01 January 1970 7,560 0 View