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fieldguide's Introduction

Gavin E. Crooks Repositories

Source Files for Books, Papers, and Expositions

Bioinformatics

Quantum Computing

  • QuantumFlow: A Quantum Algorithms Development Toolkit in python

  • qf-diamond-norm: Python code for calculating the diamond norm with semidefinite programming.

3D Printing

  • landscape2stl: High resolution terrain models for 3D printing

  • shapes2stl: Python script to generate STLs for all of the Platonic, Archimedean, Catalan, and Johnson solids, along with a selection of prisms and anti-prisms.

General Coding

  • modern-python-template: Minimal Viable Product for an open source, github hosted, python package

  • sealionengine: Kaggle NOAA Sea Lion Count Prognostication Engine. Code to munge the source data into a useable form for training.

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fieldguide's Issues

Skewed Generalized T Distribution

Unless I missed it, I don't think your guide has the Skewed Generalized T Distribution, a 5-parameter distribution that nests:
skewed generalized error distribution,
the generalized t distribution,
skewed t,
skewed Laplace distribution,
generalized error distribution,
skewed normal distribution,
student t distribution,
skewed Cauchy distribution,
Laplace distribution,
uniform distribution,
normal distribution,
Cauchy distribution

https://cran.r-project.org/web/packages/sgt/vignettes/sgt.pdf

GenBetaPrime

p. 124 it says:
Dagum(gamma, beta) = GenBetaPrime(a,s,1,gamma,-beta)
But Dagum only depends on two parameters (gamma,beta), not also on (a,s).

LogLogistic(a,s,beta) = GenBetaPrime(0,s,1,1,beta)
But LogLogistic only depends on 3 parameters (a,s,beta), but GenBetaPrime is missing a.

Also, the Kumaraswamy distribution is usually defined to be a two parameter family of distributions. But on p117 it depends on (a,s,gamma,beta)

Wrong sign for generalized Gumbel

I believe that the sign is incorrect in the parameterisation linking the generalized Gumbel distribution to its parent gamma-exponential distribution (8.4). Should it not be: GenGumbel(x; u, λ, n) = GammaExp(x; u + λ \ln n, λ, ν)? Version 1.0.0 of the field guide has a minus sign.

Pareto equation wrong

  • the pdf for the Pareto distribution is parametrized with \gamma yet the equation references negative \beta

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