Displaying 1 result from an estimated 1 matches for "285029".
Did you mean:
28502
2004 Jul 13
1
MLE, precision
Hi, everyone
I am trying to estimate 3 parameters for my survival
function. It's very complicated. The negative
loglikelihood function is:
l<- function(m1,m2,b) -sum( d*( log(m1) + log(m2)
+ log(1- exp(-(b + m2)*t)) ) + (m1/b - d)*log(m2 +
b*exp(-(b + m2)*t) ) + m1*t - m1/b*log(b+m2) )
here d and t are given, "sum" means sum over these
two vairables.
the parameters