Data/leukemia.lsp

   1 (require "bayes")
   2
   3 (def wbc-pos (list 2300 750 4300 2600 6000 10500 10000 17000 5400 7000
   4                    9400 32000 35000 100000 100000 52000 100000))
   5
   6 (def transformed-wbc-pos (- (log wbc-pos) (log 10000)))
   7
   8 (def times-pos (list 65 156 100 134 16 108 121 4 39 143 56 26 22 1 1 5 65))
   9
  10 (defun llik-pos (theta)
  11   (let* ((x transformed-wbc-pos)
  12          (y times-pos)
  13          (theta0 (select theta 0))
  14          (theta1 (select theta 1))
  15          (t1x (* theta1 x)))
  16     (- (sum t1x)
  17        (* (length x) (log theta0))
  18        (/ (sum (* y (exp t1x)))
  19           theta0))))
  20
  21 (defun lk-sprob (theta)
  22   (let* ((time 52.0)
  23          (x (log 5))
  24          (mu (* (select theta 0) (exp (- (* (select theta 1) x))))))
  25     (exp (- (/ time mu)))))