Blog Archives

R:case4base – Sorting data with base R

December 8, 2018
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R:case4base – Sorting data with base R

Introduction In this post in the R:case4base series we will examine sorting (ordering) data in base R. We will learn to sort our data based on one or multiple columns, with ascending or descending order and as always look at alternatives to base R, namely the tidyverse’s dplyr and data.table to show how we can achieve the same results. It is...

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How to work with strings in base R – An overview of 20+ methods for daily use.

November 24, 2018
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How to work with strings in base R – An overview of 20+ methods for daily use.

Introduction In this post in the R:case4base series we will look at string manipulation with base R, and provide an overview of a wide range of functions for our string working needs. We will use simple examples to learn to perform basic string operations, concatenate strings, work with substrings, switch cases, quote, find and replace within strings and more. Some interesting...

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4 ways to be more efficient using RStudio’s Code Snippets, with 11 ready to use examples

November 10, 2018
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4 ways to be more efficient using RStudio’s Code Snippets, with 11 ready to use examples

Introduction In this post we will look at yet another productivity increasing feature of the RStudio IDE - Code Snippets. Code Snippets let us easily insert and potentially execute predefined pieces of code and work not just for R code, but many other languages as well. In this post we will cover 4 different ways to increase productivity using Code Snippets...

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How to perform merges (joins) on two or more data frames with base R, tidyverse and data.table

October 27, 2018
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How to perform merges (joins) on two or more data frames with base R, tidyverse and data.table

Introduction In this post in the R:case4base series we will look at one of the most common operations on multiple data frames - merge, also known as JOIN in SQL terms. We will learn how to do the 4 basic types of join - inner, left, right and full join with base R and show how to perform the same with...

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How to import a directory of csvs at once with base R and data.table. Can you guess which way is the fastest?

October 13, 2018
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How to import a directory of csvs at once with base R and data.table. Can you guess which way is the fastest?

Introduction Inspired by a recent post on how to import a directory of csv files at once using purrr and readr by Garrick, in this post we will try achieving the same using base R with no extra packages, and with data·table, another very popular package and as an added bonus, we will play a bit with benchmarking to see...

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4 ways to be more productive, using RStudio’s terminal

September 29, 2018
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4 ways to be more productive, using RStudio’s terminal

Introduction RStudio version 1.1 introduced the Terminal functionality, which does not seem to be getting enough deserved attention and love even though it is very well integrated with the rest of the IDE and can be extremely useful for several daily use-cases. In this post we will try to cover 4 very common scenarios where the Terminal can be very useful...

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3 reasons to not write that new code, and how I failed at it.

September 15, 2018
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3 reasons to not write that new code, and how I failed at it.

Introduction We all know that feeling. We have this great idea about a new project, feature, function, piece of code. What do we want? Write that amazing new code! When do we want it? Right NOW! The aim of this post is to try and give you at 3 good...

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cRafty tRicks – No more typing brackets!

September 1, 2018
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cRafty tRicks – No more typing brackets!

Calling functions in R usually involves typing brackets. And since many of our actions in R involve calling a function, we will have to type a lot of brackets working with R. Often it would make our life a lot easier if we could omit the need to type brackets where convenient. We will do exactly that today. Work in...

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R:case4base – code profiling with base R

August 18, 2018
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R:case4base – code profiling with base R

Introduction In this summertime post in the case4base series, we will look at useful tools in base R, which let us profile our code without any extra packages needed to be installed. We will cover simple and easy to use speed profiling, more complex profiling of performance and memory and, as always, look at alternatives to base R as well,...

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RStudio:addins part 5 – Profile your code on keypress in the background, with no dependencies.

August 4, 2018
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RStudio:addins part 5 – Profile your code on keypress in the background, with no dependencies.

Introduction Profiling our code is a very useful tool to determine how well the code performs on different metrics. The addin we will create in this article will let us use a keyboard shortcut to run profiling on R code selected in RStudio without blocking the session or requiring any external packages. Specifically for very simple overview use, it may be beneficial...

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