Displaying 1 result from an estimated 1 matches for "medimel".
2012 Jan 12
2
Function accepted by optim but not mle2 (?)
Dear Sir/ Madam,
I'm having trouble de-bugging the following - which works perfectly
well with optim or optimx - but not with mle2.
I'd be really grateful if someone could show me what is wrong. Many
thanks in advance. JSC:
gompertz<- function (x,t=data)
{
a3<-x[1]
b3<-x[2]
shift<-data[1]
h.t<-a3*exp(b3*(t-shift))