1Blurb:: 2The parameter for the Poisson distribution, the expected number of events in the time interval of interest 3Description:: 4The density function for the poisson distribution is given by: 5\f[f(x) = \frac{\lambda e^{-\lambda}}{x!}\f] 6where \f$\lambda\f$ is the frequency of events happening, and \c x is the number of events that occur. 7Topics:: 8Examples:: 9Theory:: 10Faq:: 11See_Also:: 12