Simplify

Andrew Johnson · Andrew Johnson · commit e02ee6297c0b · 2021-01-27T23:04:43.000+08:00
diff --git a/basic_distributions/wishart2x2.stan b/basic_distributions/wishart2x2.stan
@@ -35,7 +35,7 @@ model {
   //   = | 0                         2 * sd2            0                     |
   //     | rho * sd2               rho * sd1        sd1 * sd2 * (1 - rho^2)   |
 
-  target += 2 * log2() + 2 * log(sd1) + 2 * log(sd2) + log1m(rho^2);
+  target += 2 * (log2() + log(sd1) + log(sd2)) + log1m(rho^2);
   
   W ~ wishart(4, S);
 }

Original file line number	Diff line number	Diff line change
`@@ -35,7 +35,7 @@ model {`
`35`	`35`	`// = \| 0 2 * sd2 0 \|`
`36`	`36`	`// \| rho * sd2 rho * sd1 sd1 * sd2 * (1 - rho^2) \|`
`37`	`37`
`38`		`- target += 2 * log2() + 2 * log(sd1) + 2 * log(sd2) + log1m(rho^2);`
	`38`	`+ target += 2 * (log2() + log(sd1) + log(sd2)) + log1m(rho^2);`
`39`	`39`
`40`	`40`	`W ~ wishart(4, S);`
`41`	`41`	`}`