Computes likelihood for normal model with positive mean.
nplike(x, mu, alpha, beta, theta, cond, sub, item, lag, sigma2)
~~Describe x
here~~
~~Describe mu
here~~
~~Describe alpha
here~~
~~Describe beta
here~~
~~Describe theta
here~~
~~Describe cond
here~~
~~Describe sub
here~~
~~Describe item
here~~
~~Describe lag
here~~
~~Describe sigma2
here~~