censpois.mle: MLE of the left censored Poisson distribution

Description Usage Arguments Details Value Author(s) See Also Examples

View source: R/univariate.mle.R View source: R/univariate.mle.R

Description

MLE of the left censored Poisson distribution.

Usage

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censpois.mle(x, tol = 1e-07)

Arguments

x

A vector with positive valued data (zeros are not allowed).

tol

The tolerance level up to which the maximisation stops; set to 1e-07 by default.

Details

Instead of maximising the log-likelihood via a numerical optimiser we have used a Newton-Raphson algorithm which is faster. The lowest value in x is taken as the censored point. Values below are censored.

Value

A list including:

iters

The number of iterations required for the Newton-Raphson to converge.

loglik

The value of the maximised log-likelihood.

lambda

The estimated λ parameter.

Author(s)

Michail Tsagris

R implementation and documentation: Michail Tsagris <mtsagris@uoc.gr>.

See Also

km, censweibull.mle

Examples

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x1 <- rpois(10000,15)
x <- x1
x[x<=10] = 10
mean(x)
censpois.mle(x)$lambda

Rfast2 documentation built on March 22, 2021, 9:08 a.m.