User Activity

  • Modified a comment on discussion Help on JAGS: Just Another Gibbs Sampler

    Hi, I want to fit predicted proportions to observed ones using a dirichlet with an added multiplier allowing to control the dispersion. However, I get a "slicer stuck at value with infinite density" error. I found the suggestion of @martyn_plummer to add an offset (https://sourceforge.net/p/mcmc-jags/discussion/610037/thread/c21ef62a/) but it did not solve my problem. I found a way to make it work (see below), and for me, it seems to be quite similar to fitting the dirichlet directly (as the precision...

  • Posted a comment on discussion Help on JAGS: Just Another Gibbs Sampler

    Hi, I want to fit predicted proportions to observed ones using a dirichlet with an added multiplier allowing to control the dispersion. However, I get a "slicer stuck at value with infinite density" error. I found the suggestion of @martyn_plummer to add an offset (https://sourceforge.net/p/mcmc-jags/discussion/610037/thread/c21ef62a/) but it did not solve my problem. I found a way to make it work (see below), and for me, it seems to be quite similar to fitting the dirichlet directly (as the precision...

  • Posted a comment on discussion Help on JAGS: Just Another Gibbs Sampler

    Hi, The distribution of the sum of independent random variables is the convolution of their distributions. I can easily do the sum of several distributions in JAGS, however, how can I obtain the CDF of this distribution and sample from it to fit to observed data ? Note: my interest is more on the sum of weibull or gamma distributions Sorry from cross posting this question as I have asked something similar in the "open discussion" part. But I guess this is more an "help" question than a subject of...

  • Modified a comment on discussion Open Discussion on JAGS: Just Another Gibbs Sampler

    Hi, The distribution of the sum of independent random variables is the convolution of their distributions. But how can I code a convolution in JAGS ? For example, how can I obtain the distribution of the sum of two weibull distributions ? In fact, my interest is in the CDF of the resulting distribution and I want to fit observed data to this CDF. Thanks

  • Posted a comment on discussion Open Discussion on JAGS: Just Another Gibbs Sampler

    Hi, The distribution of the sum of independent random variables is the convolution of their distributions. But how can I code a convolution in JAGS ? For example, how can I obtain the distribution of the sum of two weibull distributions ? Thanks

  • Posted a comment on discussion Help on JAGS: Just Another Gibbs Sampler

    Dears JAGS users, Sorry to insist on this subject, but I hope finding a way to solve...

  • Posted a comment on discussion Help on JAGS: Just Another Gibbs Sampler

    Is there a way to send the update information to a cross platform external progress...

  • Modified a comment on discussion Help on JAGS: Just Another Gibbs Sampler

    Hi Martyn, Long time since I tried to use your suggestion. Here is a slightly modified...

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