data {
int<lower=0> N; vector[N] x; vector[N] y;
} parameters {
real alpha; real beta; real<lower=0> sigma;
} model {
y ~ normal(alpha + beta * x, sigma);
}
data {
int<lower=0> N; vector[N] x; vector[N] y;
} parameters {
real alpha; real beta; real<lower=0> sigma;
} model {
y ~ normal(alpha + beta * x, sigma);
}