dlmãã®3ã®ã¢ãã«ãStanã§ãã£ã¦ã¿ãã statespace.stan data { int<lower=1> N; real y[N]; int<lower=0, upper=1> x[N]; } parameters { real mu[N]; real mu0; real lambda; real<lower=0> sigma[2]; } model { for (t in 1:N) { y[t] ~ normal(mu[t] + lambda * x[t], sigma[1]); } mu[1] ~ normal(mu0, sigma[2]); for (t in 2:N) { mu[t] ~ normal(mu[t - 1], sigma[2]); } } RStanã§ã¯ data(Nile) n <- length(Nile) x <- c(rep(0, 27), rep
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