Introduction A developer always pays his technical debts! And we have a debt to pay to the gods of coding best practices, as we did not present many unit tests for our functions yet. Today we will show how to efficiently investigate and improve unit test coverage for our R ... [Read more...]

Introduction A developer always pays his technical debts! And we have a debt to pay to the gods of coding best practices, as we did not present many unit tests for our functions yet. Today we will show how to efficiently investigate and improve unit test coverage for our R ... [Read more...]

Introduction In this part of the primer we discuss creating and using custom .jar archives within our R scripts and packages, handling of Java exceptions from R and a quick look at performance comparison between the low and high-level interfaces provided by rJava. In the first part we talked about ... [Read more...]

Introduction In this part of the primer we discuss creating and using custom .jar archives within our R scripts and packages, handling of Java exceptions from R and a quick look at performance comparison between the low and high-level interfaces provided by rJava. In the first part we talked about ... [Read more...]

Introduction This primer shall consist of two parts and its goal is to provide a walk-through of using resources developed in Java from R. It is structured as more of a “note-to-future-self” rather than a proper educational article, I however hope that some readers may still find it useful. It ... [Read more...]

Introduction This primer shall consist of two parts and its goal is to provide a walk-through of using resources developed in Java from R. It is structured as more of a “note-to-future-self” rather than a proper educational article, I however hope that some readers may still find it useful. It ... [Read more...]

Introduction In the previous articles of the R:case4base series we discussed and learned how to reshape data with base R to a form that is practical for our use and how to subset data to get the relevant parts of it with base R. In this one, we ... [Read more...]

Introduction In the previous articles of the R:case4base series we discussed and learned how to reshape data with base R to a form that is practical for our use and how to subset data to get the relevant parts of it with base R. In this one, we ... [Read more...]

Introduction In this post in the RStudio:addins series we will try to make our work more efficient with an addin for better inspection of objects, functions and files within RStudio. RStudio already has a very useful View function and a Go To Function / File feature with F2 as the ... [Read more...]

Introduction In this post in the RStudio:addins series we will try to make our work more efficient with an addin for better inspection of objects, functions and files within RStudio. RStudio already has a very useful View function and a Go To Function / File feature with F2 as the ... [Read more...]

Introduction Code documentation is extremely important if you want to share the code with anyone else, future you included. In this second post in the RStudio:addins series we will pay a part of our technical debt from the previous article and document our R functions conveniently using a new ... [Read more...]

Introduction Code documentation is extremely important if you want to share the code with anyone else, future you included. In this second post in the RStudio:addins series we will pay a part of our technical debt from the previous article and document our R functions conveniently using a new ... [Read more...]

Contents Introduction Prerequisites and recommendations Step 1 - Creating a package Step 2 - Writing the first functions Step 3 - Setting up an addin Step 4 - Updating our DESCRIPTION and NAMESPACE What is next - Always paying our (technical) debts Wrapping up TL;DR - Just give me the package References Introduction ... [Read more...]

Introduction This is the first post in the RStudio:addins series. The aim of the series is to walk the readers through creating an R package that will contain functionality for integrating useful addins into the RStudio IDE. At the end of this first article, your RStudio will be 1 useful ... [Read more...]

Contents Introduction How to use this article Selecting (subsetting) relevant data from a data.frame Constructing meaningful subsets simply and safely More ways to provide subset indices Alternatives to base R TL;DR - Just want the code Exercises References Exercise answers Introduction In the previous article we discussed and ... [Read more...]

Contents Introduction How to use this article Basic wide to long reshape Basic long to wide reshape Advanced reshape Alternatives to base R TL;DR - Just want the code Exercises References Exercise answers Discuss the article Introduction This is the first post in the R:case4base series. The ... [Read more...]