@logl logl

y=c(1)*know+c(2)*time+c(3)*sex+c(4)*age+c(5)*edu+c(6)*inc

var=c(14)

logl=yy*log(@dnorm((y-tu)/@sqrt(var)))+yn*log(@dnorm((y-t)/@sqrt(var))-@dnorm((y-tu)/@sqrt(var)))+ny*log(@dnorm((y-tl)/@sqrt(var))-@dnorm((y-t)/@sqrt(var)))+nn*log(@dnorm(y/@sqrt(var))-@dnorm((y-tl)/@sqrt(var)))

@temp y var logl

其中，know、time、sex、age、edu、inc都是样本特征变量，yy、yn、ny、nn为二元变量