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dpareto2_estimate_mle {agop}R Documentation

Parameter Estimation in the Discretized Pareto-Type II Distribution Family (MLE)

Description

Finds the maximum likelihood estimator of the Discretized Pareto Type-II distribution's shape parameter k and scale parameter s.

Usage

dpareto2_estimate_mle(x, k0 = 1, s0 = 1, kmin = 1e-04, smin = 1e-04,
  kmax = 100, smax = 100)

Arguments

x

a non-negative numeric vector

k0,s0

initial points for the L-BFGS-B method

kmin,kmax

lower and upper bound for the shape parameter to look for

smin,smax

lower and upper bound for the scale parameter to look for

Details

Note that the maximum of the likelihood function may not exist for some input vectors. This estimator may have large mean squared error.

Value

a numeric vector with the following named components:

or c(NA, NA) if the maximum of the likelihood function could not be found.

See Also

Other DiscretizedPareto2: ddpareto2, pdpareto2, qdpareto2, rdpareto2


[Package agop version 0.2-0 Index]