Recent content by michaelmas

  1. M

    Sampling from normalized and un-normalized posterior

    Ok, let me rephrase the question. if ##p(\theta|y)## is the distribution of interest, then what good is ##p(y|\theta)p(\theta)## if the mean and variance aren't the same?
  2. M

    Sampling from normalized and un-normalized posterior

    I don't know. What exactly is the point with MCMC and not normalizing? Isn't that what the Bayesians are doing?
  3. M

    Sampling from normalized and un-normalized posterior

    Help me understand something. I get that the posterior ##p(\theta|y) \propto p(y|\theta)p(\theta)## should be normalized by ##\frac{1}{p(y)}## for the probability to sum to 1, but what about the mean and variance? Am I not right understanding that sampling from the un-normalized posterior...
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