`R/Poisson.R`

The log likelihood of a Poisson density with data, x, lambda parameter.

likpois(x, lambda, log = TRUE)

x | vector of (non-negative integer) quantiles. |
---|---|

lambda | vector of (non-negative) means. |

log | logical; if TRUE, probabilities p are given as log(p). |

A numeric scalar for the log likelihood of the Poisson density given the data where lambda can be held constant or if vector were given vector will be returned.

The log likelihood is the log of a function of parameters given the data.

likpois(x = rpois(n = 2, lambda = 4), lambda = 4)#> [1] -5.147124