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One response to “esther_choo_feature”

  1. mmonly comes up that one needs to sample from a discrete distribution. That is, from a multinomial distribution with parameter $\boldsymbol{\pi}\in\mathbb{R}^K$, such that $\pi_k\geq 0$ and $\sum_{k}\pi_k=1$. A somewhat more common occurrence is that we have a $\boldsymbol{\phi}\in\mathbb{R}^K$ where $\phi_k\geq 0$, but we don’t know the normalization constant. That is, our $\boldsymbol{\phi}$ is only proportional to the multinomial parameter $\boldsymbol{\pi}$. We want to rapidly generate a variate according to $\boldsymbol{\pi}$, given $\bol

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