Blog Archives

An xpd-tion into R plot margins

November 20, 2014
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An xpd-tion into R plot margins

This is a guest post by Prasad Patil that answers the question: how to put a shape in the margin of an R plot? The help page for R's par() function is a somewhat impenetrable list of abbreviations that allow you to manipulate anything and everything in the plotting device. You may have used this function in the past to create an array...

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Where do I start using Bioconductor?

October 15, 2014
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Where do I start using Bioconductor?

I was recently asked where do I get started with Bioconductor? and thought this would be a good short post. What is BioC? Briefly, Bioconductor (Gentleman, Carey, Bates, and others, 2004) is an open source project that hosts a wide range of tools for...

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Concerns that can deter potential orders for developing Shiny apps

June 10, 2014
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Concerns that can deter potential orders for developing Shiny apps

A few weeks ago I was invited to a meeting where a group was interested in exploring options for replacing their contract with a propriety software. They invited me because they saw some resemblances between a Shiny application I made and the features ...

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Simple mortgage calculator

April 22, 2014
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Simple mortgage calculator

Have you ever thought of borrowing some money? A common case is when you have to borrow money for buying a house, which is called a mortgage. Wikipedia ('Mortgage loan' entry) goes into much more detail about the definition than what I'll cover. One o...

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rMaps Mexico map

February 26, 2014
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rMaps Mexico map

It's exciting when great people help each other get things done This is a simple networking story, which not be surprising to some but I was happily surprised by it. This is how the story goes: Two weeks ago rMaps (Vaidyanathan, 2014) was released. After making a blog post about it I thought about using it to make a map of...

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Automatically coloring your R output in the terminal using colorout

February 17, 2014
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Automatically coloring your R output in the terminal using colorout

Thanks to Alyssa Frazee I just learned about the colorout package (Aquino, 2013). It modifies R so that the output is in different colors, making it much more pleasant to use R in the terminal. Do note that colorout is not available from CRAN, but you can easily install by following the instructions on the colorout site (Official site) reproduced...

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rMaps released

February 10, 2014
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rMaps released

Ramnath Vaidyanathan just released his new R interactive package, rMaps (Vaidyanathan, 2014). The packages relies on the development version of his widely known rCharts package (Vaidyanathan, 2013) as well as javascript libraries that specialize in maps. If you don't know Ramnath, he is one of the most active R developers out there!! You can see that from his GitHub...

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How to upload files to Dropbox and Google Docs from R

February 5, 2014
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How to upload files to Dropbox and Google Docs from R

Have you ever wondered whether you can upload files from R to Dropbox and/or Google Docs? I recently asked myself this question while making my most recent Shiny app (more later). The answer is yes, you can upload files from R to these cloud services! Dropbox As far as I know, the best R package for uploading files to Dropbox is rDrop...

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Creating awesome reports for multiple audiences using knitrBootstrap

December 10, 2013
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Creating awesome reports for multiple audiences using knitrBootstrap

As a biostatistics student, I use R very frequently when analyzing data. At the same time, I interact with other researchers, some who know how to use R (R crowd) and some who don't (yet!): no-R crowd. This means that I have to be able to communicate my results to two crowds. It is important that I can quickly...

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Trying to reduce the memory overhead when using mclapply

November 14, 2013
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Trying to reduce the memory overhead when using mclapply

I am currently trying to understand how to reduce the memory used by mclapply. This function is rather complicated and others have explained the differences versus parLapply (A_Skelton73, 2013; lockedoff, 2012 ) and also made it clear that in mclapply each job does not know if the others are running out of memory and thus cannot trigger gc...

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