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This is an old version, <a href="https://mc-stan.org/docs/functions-reference/multivariate_discrete_distributions.html#multinomial-distribution">view current version</a>.
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<h2><span class="header-section-number">14.1</span> Multinomial Distribution</h2>
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<h3><span class="header-section-number">14.1.1</span> Probability Mass Function</h3>
<p>If <span class="math i