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This is an old version, <a href="https://mc-stan.org/docs/reference-manual/index.html">view current version</a>.
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<h1><i style="font-size: 110%; color:#990017;">Language</i></h1>
<p>This part of the manual lays of the specification of the Stan
programming language. The language is responsible for defining a log
density function conditioned on data. Typically, this is a Bayesian
posterior, but it may also be