Blog Archives

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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cRafty tRicks – No more typing brackets!

September 1, 2018
By
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...

Read more »

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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R:case4base – code profiling with base R

August 18, 2018
By
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,...

Read more »

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

August 4, 2018
By
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...

Read more »

RStudio:addins part 4 – Unit testing coverage investigation and improvement, made easy

July 21, 2018
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RStudio:addins part 4 – Unit testing coverage investigation and improvement, made easy

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 code, with focus on functions governing our RStudio addins, which...

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RStudio:addins part 4 – Unit testing coverage investigation and improvement, made easy

July 21, 2018
By
RStudio:addins part 4 – Unit testing coverage investigation and improvement, made easy

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 code, with focus on functions governing our RStudio addins, which...

Read more »

A primer in using Java from R – part 2

July 7, 2018
By
A primer in using Java from R – part 2

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 using the rJava package to create objects, call methods and work...

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A primer in using Java from R – part 2

July 7, 2018
By
A primer in using Java from R – part 2

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 using the rJava package to create objects, call methods and work...

Read more »

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