Update dlm.stan

ericward-noaa · web-flow · commit c775430d7c3e · 2025-04-22T06:37:08.000-07:00
Change priors from Student-t -&gt; Normal(0, 0.5)
diff --git a/inst/stan/dlm.stan b/inst/stan/dlm.stan
@@ -97,9 +97,9 @@ transformed parameters {
   }
 }
 model {
-  sigma ~ student_t(3,0,1); // prior for sigma
+  sigma ~ normal(0, 0.5); // prior for sigma
   Lcorr ~ lkj_corr_cholesky(2.0); // prior for cholesky factor of a correlation matrix
-  phi ~ student_t(3,0,1); // obseervation variance
+  phi ~ normal(0, 0.5); // obseervation variance
   b_fixed ~ normal(0,1);
   nu ~ student_t(3,0,1);
 

Original file line number	Diff line number	Diff line change
`@@ -97,9 +97,9 @@ transformed parameters {`
`97`	`97`	`}`
`98`	`98`	`}`
`99`	`99`	`model {`
`100`		`- sigma ~ student_t(3,0,1); // prior for sigma`
	`100`	`+ sigma ~ normal(0, 0.5); // prior for sigma`
`101`	`101`	`Lcorr ~ lkj_corr_cholesky(2.0); // prior for cholesky factor of a correlation matrix`
`102`		`- phi ~ student_t(3,0,1); // obseervation variance`
	`102`	`+ phi ~ normal(0, 0.5); // obseervation variance`
`103`	`103`	`b_fixed ~ normal(0,1);`
`104`	`104`	`nu ~ student_t(3,0,1);`
`105`	`105`