log_glm_lpmf; (int y | matrix x, vector alpha, vector beta); -->

<p><code>real</code> <strong><code>poisson_log_glm_lpmf</code></strong><code>(int y | matrix x, vector alpha, vector beta)</code><br>The log Poisson probability mass of <code>y</code> given the log-rate <code>alpha + x * beta</code>, where an intercept <code>alpha</code> is used that is allowed to vary with the different observations. Dependent variable value <code>y</code> is used for all observations. The number of rows of <code>x</code> mu