Hello All,
I am stuck in the following problem.
Cexpt=c(0,25,50,100,150,300,250,125,40)
t=c(0,0.2,0.4,0.6,1,4,8,12,24)
theta0= vector of 6 parms (My initial parameter)
A=Constraint matrix (hopefully 6*6)
B= Constraint vector of length 6)
Cfit=function(t,theta){
J(t)=function(theta,t)
Cfit=function(J(t),constant)
return(Cfit) }
loss=function(theta,t,Cexpt) { sum(Cexpt- Cfit(t,theta))^2}
Final=constrOptim(theta0,loss,t,Cexpt,NULL,A,B)
When i try to fit it gives me error
ERROR IN UI%*% THETA : MATRIX/VECTOR/COMPLEX ARGUEMENTS REQUIRED OR
SOMETHING...
thank you all.
M
J
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