# Is a Bayesian estimate with a “flat prior” the same as a maximum likelihood estimate?

In phylogenetics, phylogenetic trees are often constructed using MLE or Bayesian analysis. Oftentimes, a flat prior is used in the Bayesian estimate. As I understand it, a Bayesian estimate is a likelihood estimate that incorporates a prior. My question is, if you use a flat prior, is it any different from simply doing a likelihood analysis?

• See if this related question answer your question. stats.stackexchange.com/questions/64259/… – Manoel Galdino Mar 3 '15 at 19:45
• A Bayesian MAP estimate may coincide with an MLE. However, the posterior distribution has no equivalent from a likelihood perspective. – Xi'an Mar 3 '15 at 21:58