first attempt to fix #27

hammerlab · Nov 7, 2016 · 7ccb70a · 7ccb70a
1 parent 69e97b5
commit 7ccb70a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/survivalstan/stan/weibull_survival_model.stan b/survivalstan/stan/weibull_survival_model.stan
@@ -44,7 +44,7 @@ parameters {
 
 transformed parameters {
   vector[M] beta;
-  real alpha;
+  real<lower=0> alpha;
   vector[N] lp;
 
   beta <- bg_prior_lp(tau_s_raw, tau_raw) .* beta_raw;