package furnishes functionality to work with Lorentz transforms in special
relativity.  It also implements the gyrogroup structure of three-velocities

Description: The Lorentz transform in special relativity; also the gyrogroup structure of three-velocities following Ungar (2006)
<doi:10.1088/0143-0807/27/3/L02>.  For general relativity, see the

Description: The Lorentz transform in special relativity; also the gyrogroup structure of three-velocities.  Includes active and passive transforms and the ability to use units in which the speed of light is not one.  For general relativity, see the

Title: Tools for Deriving Income Inequality Estimates from Grouped
Description: Provides two methods of estimating income inequality statistics from binned income data, such as the income data provided in the Census.
These methods use different interpolation techniques to infer the distribution of incomes within income bins.  One method is an implementation of
Jargowsky and Wheeler's mean-constrained integration over brackets (MCIB).  The other method is based on a new technique, Lorenz interpolation,
which estimates income inequality by constructing an interpolated Lorenz curve based on the binned income data.  These methods can be used to
estimate three income inequality measures: the Gini (the default measure returned), the Theil, and the Atkinson's index.
Packaged: 2020-08-26 13:50:53 UTC; andrewcarr

Title: Low-Rank Interaction Contingency Tables
Authors@R: person("Genevieve", "Robin", email = "genevieve.robin@polytechnique.edu",
Description: Estimation and visualization of low-rank interaction contingency tables. Low-rank interaction is a two-fold extension of the log-bilinear model. First, instead of a fixed rank constraint, the log-likelihood is penalized by the nuclear norm of the interaction matrix. Second, available row and column covariates can be incorporated in the model. The main function can be applied to contingency tables with missing values. G. Robin, J. Josse, E. Moulines, S. Sardy (2017) <arXiv:1703.02296>.
Imports: psych, svd, NLRoot, FactoMineR, glmnet, pdist, lars, ade4,
Packaged: 2018-02-26 22:37:37 UTC; genevieverobin