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xbeta is a math-enabled wiki. Your browser must support MathML to properly view mathematical expressions on this site. Pages are easy to create and edit using a combination of Markdown, a simple plain text markup language, and itex, a language for describing math based on Latex.

To get started, see Formatting rules for details about the syntax or head to the Sandbox to practice editing pages by example. See About and News for more information.

Featured Articles

• Metropolis-Hastings algorithm - a method that enables sampling from any density function that can be evaluated up to a constant of integration.

• Kalman filter - an efficient recursive estimator for the unobserved state of a linear discrete time dynamical system in the presence of measurement error.

• Truncated normal distribution - the standard normal distribution restricted to lie in some closed interval.