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Greg  

Regression Helper Functions
View on CRAN: Click here


Download and install Greg package within the R console
Install from CRAN:
install.packages("Greg")

Install from Github:
library("remotes")
install_github("cran/Greg")

Install by package version:
library("remotes")
install_version("Greg", "2.0.3")



Attach the package and use:
library("Greg")
Maintained by
Max Gordon
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2016-03-28
Latest Update: 2025-09-03
Description:
Methods for manipulating regression models and for describing these in a style adapted for medical journals. Contains functions for generating an HTML table with crude and adjusted estimates, plotting hazard ratio, plotting model estimates and confidence intervals using forest plots, extending this to comparing multiple models in a single forest plots. In addition to the descriptive methods, there are functions for the robust covariance matrix provided by the 'sandwich' package, a function for adding non-linearities to a model, and a wrapper around the 'Epi' package's Lexis() functions for time-splitting a dataset when modeling non-proportional hazards in Cox regressions.
How to cite:
Max Gordon (2016). Greg: Regression Helper Functions. R package version 2.0.3, https://cran.r-project.org/web/packages/Greg. Accessed 26 Aug. 2026.
Previous versions and publish date:
1.2.1 (2018-03-20 19:11), 1.2.2 (2018-04-21 22:12), 1.2 (2016-03-28 23:25), 1.3.1 (2019-09-21 17:10), 1.3.2 (2019-11-16 15:10), 1.3.3 (2020-03-06 18:00), 1.3.4 (2020-06-25 06:30), 1.3 (2019-01-07 01:00), 1.4.0 (2021-11-23 21:20), 1.4.1 (2022-08-07 23:10), 2.0.0 (2022-10-13 23:52), 2.0.1 (2022-11-16 10:50), 2.0.2 (2024-01-29 14:30), (2026-07-09 08:06)
Other packages that cited Greg R package
View Greg citation profile
Other R packages that Greg depends, imports, suggests or enhances
Complete documentation for Greg
Functions, R codes and Examples using the Greg R package
Some associated functions: GetCoefAndCI . Greg-package . SimpleRmsAnova . addNonlinearity . bread.ols . caDescribeOpts . confint.ols . confint_robust . estfun.ols . forestplotCombineRegrObj . forestplotRegrObj . getCrudeAndAdjustedModelData . getModelData4Forestplot . hatvalues.ols . isFitFn . model.matrix.ols . plotHR . prCaAddRefAndStat . prCaAddReference . prCaAddUserReferences . prCaGetImputationCols . prCaGetRowname . prCaGetVnStats . prCaPrepareCrudeAndAdjusted . prCaReorder . prCaReorderReferenceDescribe . prCaSelectAndOrderVars . prCaSetRownames . prClearPCAclass . prConvertShowMissing . prEnvModelCall . prExtractOutcomeFromModel . prFindRownameMatches . prGetModelData . prGetModelVariables . prGetStatistics . prMapVariable2Name . prNlChooseDf . prPhConfIntPlot . prPhDensityPlot . prPhEstimate . prPhNewData . prPhRugPlot . prPrintCAstring . printCrudeAndAdjustedModel . robcov_alt . tidy.rms . timeSplitter . 
Some associated R codes: Greg.R . addNonlinearity.R . confint_robust.R . forestplotCombineRegrObj.R . forestplotRegrObj.R . forestplotRegrObj_prForestplotPrep.R . forestplotRegrObj_prGetModelDefaults4forestplot.R . getCrudeAndAdjustedModelData.R . getCrudeAndAdjustedModelData.rms.R . getModelData4Forestplot.R . isFitCoxPH.R . isFitLogit.R . plotHR.R . printCrudeAndAdjustedModel.R . private_functions.R . private_getCaA.R . private_plotHR.R . private_printCaA.R . rms_SandwichAddon.R . simpleRmsAnova.R . tidy.rms.R . timeSplitter.R .  Full Greg package functions and examples
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