Package: diagL1
Type: Package
Title: Routines for Fit, Inference and Diagnostics in Linear L1 and LAD
        Models
Version: 1.0.1
Authors@R: c(person(given = "Kevin Allan",
           family = "Sales Rodrigues",
           role = c("aut", "cre"),
           email = "kevin.asr@outlook.com",
           comment = c(ORCID = "0000-0003-4925-5883")),
           person(given = "Silvia",
           family = "Nagib Elian",
           role = c("ctb", "ths")))
Author: Kevin Allan Sales Rodrigues [aut, cre] (ORCID:
    <https://orcid.org/0000-0003-4925-5883>),
  Silvia Nagib Elian [ctb, ths]
Maintainer: Kevin Allan Sales Rodrigues <kevin.asr@outlook.com>
Description: Diagnostics for linear L1 regression (also known as LAD - Least Absolute Deviations), including: estimation, confidence intervals, tests of hypotheses, measures of leverage, methods of diagnostics for L1 regression, special diagnostics graphs and measures of leverage. The algorithms are based in Dielman (2005)  <doi:10.1080/0094965042000223680>, Elian et al. (2000) <doi:10.1080/03610920008832518> and Dodge (1997) <doi:10.1006/jmva.1997.1666>. This package builds on the 'quantreg' package, which is a well-established package for tuning quantile regression models. There are also tests to verify if the errors have a Laplace distribution based on the work of Puig and Stephens (2000) <doi:10.2307/1270952>.
License: GPL (>= 2)
Depends: R (>= 3.6), quantreg (>= 6.1), greekLetters (>= 1.0.4)
Encoding: UTF-8
LazyData: true
Imports: stats, methods, conquer, lawstat, MatrixModels, Matrix, MASS,
        cubature, doParallel, foreach
RoxygenNote: 7.3.2
NeedsCompilation: no
Packaged: 2025-08-21 15:30:20 UTC; kevin
Repository: CRAN
Date/Publication: 2025-08-21 18:20:08 UTC
Built: R 4.6.0; ; 2026-04-26 06:56:22 UTC; unix
