kendallRandomWalks0.9.4 package

Simulate and Visualize Kendall Random Walks and Related Distributions

fit_kendall

Fit stable Kendall distribution for given data and m_alpha function.

fit_separate

Function for fitting stable Kendall distribution separately to two par...

fit_stable_alpha

Fit stable Kendall distribution with one parameter (alpha)

full_loglik_gradient

Gradient of minus loglikelihood for stable Kendall distribution with 3...

full_minus_loglik

Negative loglikelihood for stable Kendall distr. with 3 parameters.

g_function

Function G(t) - Williamson transform taken at point 1/t.

g_function_single

Function G(t) - Williamson transform taken at point 1/t.

kendall_loglik

Log-likelihood for stable kendall distribution with m_alpha = 1

kendallRandomWalks

kendallRandomWalks: explore and visualize Kendall random walks.

ladder_height

Estimate the distribution of first ladder height for given level

ladder_moment

Estimate the distribution of first ladder moment for given level

ladder_moment_pmf

Distribution of the first ladder moment.

mutate_kendall_rw

Mutate each trajectory.

pkend

CDF of Kendall stable distribution

pkendSym

CDF of symmetrical Kendall stable distribution

plot.kendall_barrier_crossing

Generic function for plotting results of ladder_moment function.

plot.kendall_fit

QQ-plot for the result of fitting stable Kendall distribtion.

plot.kendall_simulation

Generic function that draws simulated trajectories of Kendall random w...

plot.kendall_summary

Plot summary of Kendall random walk simulations.

print.kendall_barrier_crossing

Generic function for printing result of ladder_moment function

print.kendall_simulation

Generic function that prints information about simulated Kendall rando...

print.kendall_summary

Print summary of Kendall random walk simulations.

qkend

Quantiles of Kendall stable distribution

qkendSym

Quantiles of symmetrical Kendall stable distribution

Qn

Helper function

rkend

Pseudo-random number from Kendall stable distribution

simulate_kendall_rw

Simulate multiple trajectories of Kendall random walk

simulateOneTrajectory

Simulate one trajectory ofa Kendall random walk

summarise_kendall_rw

Calculate some characteristic for every simulated instance.

transform_kendall_rw

Transforming (scaling and shifting) Kendall random walks

U

Helper function

Z

Helper function: min/max

dkend

PDF of Kendall stable distribution

estimate_stable_alpha

Fit alpha parameter using MLE for distribution with one parameter

Kendall random walks are a continuous-space Markov chains generated by the Kendall generalized convolution. This package provides tools for simulating these random walks and studying distributions related to them. For more information about Kendall random walks see Jasiulis-Gołdyn (2014) <arXiv:1412.0220>.

  • Maintainer: Mateusz Staniak
  • License: MIT + file LICENSE
  • Last published: 2018-08-04