search for: mcmc_iter

Hi all, im triyng to implement a bayesian model with R and c++. I have a strange problem. I can't reproduce the error with a small script and then i post the original one. The problem is after the line for(MCMC_iter2=0;MCMC_iter2<thin;MCMC_iter2++) For the first 34 iterations all work fine, after, all the simulations of mu_acc_P return an "nan". If i delete the line alpha_acc_P[0] = rnorm(app1_3,sqrt(app1_4) ); the simulations of mu_acc_P work fine. For me it is really strange, Thanks!....