User guide: increase the prior variance of 2 params for working around Octave bug (see ticket #161)

(cherry picked from commit 19a994af)

doc/userguide/ch-estbase.tex

@@ -87,9 +87,9 @@ Coming back to our basic example, we would write:\\
 alpha, beta\_pdf, 0.35, 0.02; \\ 
 beta, beta\_pdf, 0.99, 0.002; \\
 delta, beta\_pdf, 0.025, 0.003;\\
-psi, gamma\_pdf, 1.75, 0.02;\\
+psi, gamma\_pdf, 1.75, 0.1;\\
 rho, beta\_pdf, 0.95, 0.05;\\
-epsilon, gamma\_pdf, 10, 0.003;\\
+epsilon, gamma\_pdf, 10, 0.5;\\
 stderr e, inv\_gamma\_pdf, 0.01, inf;\\
 end;}\\
 
@@ -178,9 +178,9 @@ estimated\_params;\\
 alpha, beta\_pdf, 0.35, 0.02; \\ 
 beta, beta\_pdf, 0.99, 0.002; \\
 delta, beta\_pdf, 0.025, 0.003;\\
-psi, gamma\_pdf, 1.75, 0.02;\\
+psi, gamma\_pdf, 1.75, 0.1;\\
 rho, beta\_pdf, 0.95, 0.05;\\
-epsilon, gamma\_pdf, 10, 0.003;\\
+epsilon, gamma\_pdf, 10, 0.5;\\
 stderr e, inv\_gamma\_pdf, 0.01, inf;\\
 end;\\
 \\

doc/userguide/models/RBC_Est.mod

@@ -30,9 +30,9 @@ estimated_params;
 alpha, beta_pdf, 0.35, 0.02;
 beta, beta_pdf, 0.99, 0.002;
 delta, beta_pdf, 0.025, 0.003;
-psi, gamma_pdf, 1.75, 0.02;
+psi, gamma_pdf, 1.75, 0.1;
 rho, beta_pdf, 0.95, 0.05;
-epsilon, gamma_pdf, 10, 0.003;
+epsilon, gamma_pdf, 10, 0.5;
 stderr e, inv_gamma_pdf, 0.01, inf;
 end;