mcmc method fitting model why use mcmc when modelling how to fit a model using mcmc why is mcmc used to find the likelihood of a model what is the mcmc method what is mcmc approach can you fit multiple variables to chi what is mcmc approach? how should a model fit to data in mcmc fitting a model with mcmc what is fit fitting model how do you find the chi square of an equation? what is the use of mcmc method for model fitting what is mcmc method how to use mcmc method in simulation how to fit a model with mcmc what is the mcmc method how does mcmc fit chi square how to find the fit of a model to a model what is fitted model using mcmc?