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Easy

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Building and Checking the Package

The task involves writing a shell script to automate the process of installing dependencies, building the source tarball, and running R CMD check on the lme4 package.

Introduction

The lme4 package is a widely used R package for fitting and analyzing linear, nonlinear and generalized linear mixed-models. The easy task involves:

1. Installing the dependencies of lme4.
2. Building the lme4 source tarball.
3. Running R CMD check on the tarball.
4. Saving the check output(lme4_easyTest_report).

This repository contains the shell script, check output, DESCRIPTION, lme4_easyTest_report.Rmd and lme4_easyTest_report.html file for the task.

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Shell Script

The shell script (check_lme4.sh) automates the process of building and checking the lme4 package. It performs the following steps:

1. Installs the dependencies of lme4.
2. Builds the source tarball.
3. Runs R CMD check on the tarball.
4. Moves the check output to a check_output directory.

easy/
├── check_lme4.sh
├── check_output/
│   └── lme4.Rcheck/
│       ├── 00check.log
│       ├── 00install.out
│       ├── 00_pkg_src
│       ├── Rdlatex.log
│       ├── lme4-Ex.R
│       ├── lme4-Ex.Rout
│       ├── lme4-Ex.pdf
│       ├── lme4-manual.log
│       ├── lme4-manual.pdf
│       ├── lme4
│       └── tests
├── lme4_easyTest_report.Rmd
├── lme4_easyTest_report.html
└── DESCRIPTION

Medium

Implements a diagonal random effects covariance matrix using lme4 and compares results with glmmTMB.

Observation

1.Diagonal covariance structure for random effects.

2.Fixed effects match between lme4 and glmmTMB.

3.Random effects standard deviations are consistent.