lamW - Lambert-W Function

Implements both real-valued branches of the Lambert-W function (Corless et al, 1996) <doi:10.1007/BF02124750> without the need for installing the entire GSL.

Last updated 5 months ago

6.88 score 1 stars 37 packages 62 scripts 4.4k downloads

Delaporte - Statistical Functions for the Delaporte Distribution

Provides probability mass, distribution, quantile, random-variate generation, and method-of-moments parameter-estimation functions for the Delaporte distribution with parameterization based on Vose (2008) <isbn:9780470512845>. The Delaporte is a discrete probability distribution which can be considered the convolution of a negative binomial distribution with a Poisson distribution. Alternatively, it can be considered a counting distribution with both Poisson and negative binomial components. It has been studied in actuarial science as a frequency distribution which has more variability than the Poisson, but less than the negative binomial.

Last updated 5 months ago

5.13 score 4 stars 2 packages 14 scripts 667 downloads

minimaxApprox - Implementation of Remez Algorithm for Polynomial and Rational Function Approximation

Implements the algorithm of Remez (1962) for polynomial minimax approximation and of Cody et al. (1968) <doi:10.1007/BF02162506> for rational minimax approximation.

Last updated 5 months ago

4.04 score 2 stars 1 scripts 300 downloads

revss - Robust Estimation in Very Small Samples

Implements the estimation techniques described in Rousseeuw & Verboven (2002) <doi:10.1016/S0167-9473(02)00078-6> for the location and scale of very small samples.

Last updated 5 months ago

3.78 score 4 stars 271 downloads

MBBEFDLite - Statistical Functions for the Maxwell-Boltzmann-Bose-Einstein-Fermi-Dirac (MBBEFD) Family of Distributions

Provides probability mass, distribution, quantile, random variate generation, and method-of-moments parameter fitting for the MBBEFD family of distributions used in insurance modeling as described in Bernegger (1997) <doi:10.2143/AST.27.1.563208> without any external dependencies.

Last updated 4 months ago

3.60 score 1 stars 207 downloads

Pade - Padé Approximant Coefficients

Given a vector of Taylor series coefficients of sufficient length as input, the function returns the numerator and denominator coefficients for the Padé approximant of appropriate order (Baker, 1975) <ISBN:9780120748556>.

Last updated 5 months ago

3.00 score 1 stars 2 scripts 317 downloads