Articles by Jozef's Rblog

A primer in using Java from R – part 2

July 7, 2018 | 0 Comments

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 ...
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A primer in using Java from R – part 1

June 23, 2018 | 0 Comments

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 ...
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A primer in using Java from R – part 1

June 23, 2018 | 0 Comments

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...]

R:case4base – data aggregation with base R

June 9, 2018 | 0 Comments

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 ...
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R:case4base – data aggregation with base R

June 9, 2018 | 0 Comments

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...]

RStudio:addins part 1. – code reproducibility testing

May 5, 2018 | 0 Comments

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 ...
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RStudio:addins part 1 – code reproducibility testing

May 5, 2018 | 0 Comments

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 ...
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R:case4base – data subsetting and manipulation with base R

April 20, 2018 | 0 Comments

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...]

R:case4base – reshape data with base R

April 6, 2018 | 0 Comments

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...]
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