Flexible Univariate Count Models Based on Renewal Processes

Flexible univariate count models based on renewal processes. The models may include covariates and can be specified with familiar formula syntax as in glm() and package 'flexsurv'. The methodology is described in a forthcoming paper in the Journal of Statistical Software (included as vignette 'Countr_guide').


News

Countr 3.5.2 (CRAN)

  • small adjustments before submission.

  • renamed 'Countr.R' to 'Countr-package.R'.

  • updated the main vignette with the accepted version of the JSS paper.

Countr 3.5.0

  • now covariates for ancilliary parameters for the renewal regression model can be specified as part of argument 'formula'. This uses the extended formulas provided by package Formula. The syntax with argument anc remains available.

Countr 3.4.3

  • dealt with warnigs from the compiler about unused variables (and a few others).
  • When there is no precomputed bootstrap sample in the object, se.coef.renewal() now prints a slightly more informative message without raising a warning.

Countr 3.4.2

  • fixed the url's in the references for the vignettes in REFERENCES.bib.

Countr 3.4.1 (2017-11-20)

  • bugs fixed in convolution methods.
  • option added to rescale covariates (standardise, standardise_scale).
  • new vignettes added + many examples with different datasets fitted.
  • Bibtex entries for citation of the vignettes added to REFERENCES.bib.
  • numerous small improvements throughout the package.

Countr 3.3.1

  • new type = "prob" for residuals - changes in residuals.renewal, .objectiveFunction and renewal(). Comments and asome examples are temporarily put in the documentation of renewal().
  • new argument 'log' for .objectiveFunction(). It is now passed on to probability computing functions to specify whether logged values are required when summa = FALSE.

Countr 3.3.0

  • first changes on bitbucket.

Countr 3.2.8 (2016-12-20)

  • the call in the printout of renewal objects (and summary()) could be very wide (annoying in Sweave output), now print.renewal() and print.summary.renewal() obey 'width' when possible (see helper function .deparseCall()).
  • bugs corrected in print.summary.renewal() when failure to compute variance or residuals.

Countr 3.2.7 (2016-10-06)

  • fixed some bugs in printing methods.
  • added a jss_paper vignette.

Countr 3.2.6 (2016-09-14)

Countr 3.2.4

  • merged changes done separately by T. and G. to Version 3.2.2.
  • fixed some bugs introduced in 3.2.3.

Countr 3.2.3

  • all count functions vectorized in c++.
  • likelihood functions improved.

Countr 3.2.2

  • minor bug fixed in .checkInitialValues in the anc parameters.
  • all bivariate functionalities removed.
  • fertility dataset now exported with data().

Countr 3.2.1

  • minor bugs fixed in .objectiveFunction and predict with std.error.
  • last location "/..." vectorial parameters returned.
  • sign in the Frank Copula package changed to be more consistent with the intuitive results: theta <0 -> negative dependence.

Countr 3.2.0 (2016-03-23)

  • consolidated the documentation.
  • to be first CRAN version.

Countr 3.1.x

  • clean-up for CRAN submission.

Countr 3.0.0

  • renewal constructor + formula + methods.
  • dePril convolution added.
  • changed the way built in distributions are called.

Countr 2.0.3

  • inclusion of covariates using formula.
  • Burr (weibull-gamma) distribution added.
  • delayed first arrival included.

Countr 2.0.1

  • dePril convolution option added.

Countr 2.0.0

  • header files added taking advantage of Rcpp attributes.
  • conv_utils.cpp added (contains the convolution general methods).
  • weibull, gamma, gengamma counting processes added.
  • option to add user based inter-arrival times distribution using routines getProbs_directConv, getProbs_minConv; see tests for examples.

Countr 1.1.9

  • incorporated the convolution computations from Tarak's paper.

Countr 1.1.8

  • introduced file .Rbuildignore in the root directory of the package.
  • shortened the name of subdirectory 'Euler-van ...' to remove the complaint from 'R CMD build' about long paths. Also, to remove the warning by 'R CMD check' about 'not fully portable file names', replaced space with undescore in the directory name and the pdf file in it.
  • in file 'DESCRIPTION' - moved Rcpp from DEPENDS to IMPORTS:.
  • completed the roxigen argument descriptions (in the sense that 'R CMD check' doesn't complain).

Countr 1.1.7

  • gam_weiH and gam_weiA renamed ccX and ccY.
  • vectorial version dWeibullInterArrivalCountInd and dWeibullInterArrivalCountFrankCopula improved.
  • vectorial version with gamma heterogeinity added: Note that you only pass X %*% beta and not the exponential.
  • tests added based on Examples from McShane(2008) paper.
  • tests added for bivariate vectorial functions.
  • cRes object removed from "R/" to free some space.

Countr 1.1.5

  • pkg renamed from BivCount to Countr.
  • alphagen2 changed to alphagen.
  • oldCpp file removed.
  • gamma-heterogeneity functions added to the original and fast version.
  • covariates-heterogeneity functions added to the original and fast version.

Countr 1.1.0

  • renamed alphagen to alphagenOrig.

  • the signatures of the cpp functions now have namespace prefixes for namespaces other than Rcpp. In this way RcppExports.cpp does not need using namespace arma which is not included by Rcpp::compileAttributes and devtools::test() and so needed to be added manually after these calls.

    I actually used search and replace to replace occurences in the body of the functions in our cpp files, but since we can put the 'using namespace' directives in them, only the signatures of exported functions are important for the abovde purpose.

  • replaced std::cout with calls to Rprintf() in C++ code, since direct printing from C++ inside R can cause problems (and is caught by R CMD check). Also removed <iostream.

Reference manual

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install.packages("Countr")

3.5.2 by Tarak Kharrat, 2 months ago


Browse source code at https://github.com/cran/Countr


Authors: Tarak Kharrat [aut, cre] , Georgi N. Boshnakov [aut]


Documentation:   PDF Manual  


GPL (>= 2) license


Imports Matrix, Rcpp, flexsurv, Formula, VGAM, optimx, numDeriv, boot, MASS, car, utils, Rdpack, lattice, RColorBrewer, dplyr, standardize, pscl, lmtest, xtable

Suggests testthat, knitr

Linking to Rcpp, RcppArmadillo


See at CRAN