This note shows a quick way to draw convex hulls, using dplyr and ggplot2. Our example data is a dataset of European parliamentary constituencies, some of which have been successfully geocoded with the help of the ggmap package. The package taps into ... [Read more...]

Well, if you wrote about it we might be able to figure it out with my new package: happyorsad Happyorsad is a sentiment scorer. It uses the approach of Finn Årup Nielsen from Informatics and Mathematical Modelling at the Technical University of Denmark and this AFINN lists hosted in his ... [Read more...]

Here is a my video tutorial on R programming – The essentials. This tutorial is meant for those who would like to learn R,  for R beginners or for those who would like to get a quick start on R. This tutorial  tries to focus on those  main functions that any ... [Read more...]

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This note shows how to use the httr package to scrape the results of a search form. Example In this blog post, Baptiste Coulmont looks at some French nomination decrees published in the Journal officiel de la République française (JORF). Every nomination published by the French civil service ... [Read more...]

After I completed the animated tidal water surface elevation plots for the Delaware Estuary, I looked for other systems with a good set of tidal observation stations.  The Lower Columbia River near Portland, Oregon fit the bill.  Using the NOAA PORTS stations, I set up near real-time animated plots of ... [Read more...]

After I completed the animated tidal water surface elevation plots for the Delaware Estuary, I looked for other systems with a good set of tidal observation stations.  The Lower Columbia River near Portland, Oregon fit the bill.  Using the NO... [Read more...]

Short summary Last year, 2015, was a hard year for chilean exports. The main reasons were both external situation and commodities prices. Our exports are copper and non-copper (whose principal components are pulp wood, fruit and salmon). During recent years wines have acquired a greater importance, among other products that are ... [Read more...]

[This article was first published on Reimagined Invention, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share [Read more...]

Despite being a cybersecurity professional, it’s pretty easy to social engineer me: https://t.co/R3qVHEMTLo @hrbrmstr is there an R package? ;)— Thorsten G. (@SaThaRiel74) January 8, 2016 I’ll note that @jayjacobs does it all the time to me. I took Thorsten’s tweet as a challenge to ggplot2... [Read more...]

A new release, now at version number 0.6.9, of the digest package is now on CRAN. I also just prepared the Debian upload. This release is very large part the work of Thierry Onkelinx who added stable sha1 support in a new function sha1(). Here, stabl... [Read more...]

In my previous post, I had discussed at length on the research question, the dataset, the variables and the various research hypothesis. For the sake of brevity, I will restate the research question and the variables of study. Research question: Can a... [Read more...]

An essential part of the typical office talk in Germany is about soccer and the Bundesliga. One of the current key questions is; which team will be relegated. The two local teams (SV Darmstadt and Eintracht Frankfurt) are (hot) candidates. While I love the banter, let’s be data-driven and ... [Read more...]

Before reading this post, I very recommend to read: Orignal GloVe paper Jon Gauthier’s post, which provides detailed explanation of python implementation. This post helps me a lot with C++ implementation. Word embedding After Tomas Mikolov et al. released word2vec tool, there was a boom of articles about ... [Read more...]

Before reading this post, I very recommend to read: Orignal GloVe paper Jon Gauthier’s post, which provides detailed explanation of python implementation. This post helps me a lot with C++ implementation. Word embedding After Tomas Mikolov et al. released word2vec tool, there was a boom of articles about ... [Read more...]

As this flowchart from Wikipedia illustrates, data science is about collecting, cleaning, analyzing and reporting data. But is it data science or just or a "sexed up term" for Statistics (see embedded quote by Nate Silver)? It's difficult to separate the two at this level of generality, so perhaps we ... [Read more...]

As this flowchart from Wikipedia illustrates, data science is about collecting, cleaning, analyzing and reporting data. But is it data science or just or a "sexed up term" for Statistics (see embedded quote by Nate Silver)? It's difficult to separ... [Read more...]

The scientific process has been going through a welcome period of introspection recently, with a focus on understanding just how reliable the results of scientific studies are. We're not talking here about scientific fraud, but how the scientific process itself and the focus on p-values (which not even statisticians can ... [Read more...]

A while back I showed you how to make volcano plots in base R for visualizing gene expression results. This is just one of many genome-scale plots where you might want to show all individual results but highlight or call out important results by labeli... [Read more...]

A while back I showed you how to make volcano plots in base R for visualizing gene expression results. This is just one of many genome-scale plots where you might want to show all individual results but highlight or call out important results by labeling them, for example, with a ... [Read more...]