Introduction Many users tell me that R is slow. With old R releases that is 100% true provided old R versions used its own numerical libraries instead of optimized numerical libraries. But, numerical libraries do not explain the complete story. In many cases slow code execution can be attributed to inefficient ... [Read more...]

Motivation The first and second part of this analysis gave the idea that I did too much scrapping and processing and that deserves more analysis to use that information well. In this third and final part I'm also taking a lot of ideas from Julia Silge's blog. In the GitHub ... [Read more...]

Motivation The first part left an open door to analyze Rick and Morty contents using tf-idf, bag-of-words or some other NLP techniques. Here I'm also taking a lot of ideas from Julia Silge's blog. Note: If some images appear too small on your screen you can open them in a ... [Read more...]

Motivation On a previous post I explained how to install R on Ubuntu 16.04 without further complications. Now here are the equivalent steps on Ubuntu 17.10. The presented script also installs Java and common packages as I wrote this for a fresh install... [Read more...]

Motivation After reading The Life Changing Magic of Tidying Text and A tidy text analysis of Rick and Morty I thought about doing something similar but reproducible and focused on Rick and Morty. In this post I'll focus on the Tidy Data principles. However, here is the Github repo with ... [Read more...]

Published: 2016-11-30 Updated: 2017-10-10 "Any bleeder knows that books are never finished, only abandoned." César A. Hidalgo About the book You can find the book here. Less than two weeks ago R 3.4.2 was released, so we updated our R version... [Read more...]

Motivation On a previous post I explained how to install R and Python on OS X without further complications. Now here are the equivalent steps on Ubuntu. The presented script also installs Java and common packages as I wrote this for a fresh install. W... [Read more...]

Motivation On a previous post I explained how to install R and Python on OS X without further complications. Now here are the equivalent steps on Ubuntu. The presented script also installs Java and common packages as I wrote this for a fresh install. W... [Read more...]

Motivation On a previous post I explained how to install R and Python effortlessy. Now I bought a Windows machine and this post concentrates a lot of reading and the experiments I made until I configures everything in order to write this blog post. I use Pelican for my blog, ... [Read more...]

Motivation On a previous post I explained how to install R and Python effortlessy. Now I bought a Windows machine and this post gathers a lot of reading and experiments I made until I could set everything correctly to write this blog post. I use Pelican for my blog, so ... [Read more...]

Published: 2016-11-30 Updated: 2017-08-14 "Any bleeder knows that books are never finished, only abandoned." César A. Hidalgo About the book You can find the book here. In the last update we changed many parts of the code, doing a necessary t... [Read more...]

Why should you do this? On Install R and Python via Homebrew I described some potential problems when using R or Python libraries. After doing a fresh OS X install I had some problems with \(\LaTeX\) and XQuartz. The root of the problem is directories location that is easily solved ... [Read more...]

Original posted on 2017-01-08Updated posted on 2017-07-12 Why should you do this? With a single brew upgrade you can save yourself a headache and valuable time when you need newer software versions. Besides that, R binaries from CRAN and OS X stock Python can give problems with ... [Read more...]

Original posted on 2017-01-08Updated posted on 2017-07-12 Introduction A few months ago I needed to use stock Python. One way to achieve that, and not to use OS X provided version, is to install it using Homebrew. Why I needed that? Python packages installed via pip were ... [Read more...]

Introduction I was in need of importing SPSS© data for work. There are some options but I've used both foreign and haven R packages. I prefer haven because it integrates better with R's tidyverse and started using it in detriment of foreign when I verified it behaves well with factors ... [Read more...]

About the book This book applies tidy data principles to text analysis. The aim is to present tools to make many text mining tasks easier, more effective, and consistent with tools already in use, and in particular it presents the tidytext R pack... [Read more...]

About the book I obtained a copy of this book by Matthew Jockers throughout Universities' access from Springer. You can also get a copy from Amazon. This book is short and to the point. I would actually strongly recommend it to anyone interested ... [Read more...]

Introduction In the first part of this article I explained and compared four different functional forms to model apples' production. This is what I need to retake the previously explained examples: # Libraries #install.packages(c("micEcon","lmtest","bbmle","miscTools")) library(micEcon) library(lmtest) library(stats4) #this is a base package ... [Read more...]

Introduction Last week I found a lot of materials I used as teaching assistant. Among those materials I found some class notes from Arne Henningsen, the author of micEcon R package. I'll use that package and some others to show some concepts from Microeconomic Theory. Packages installation: #install.packages(c("... [Read more...]

Introduction Last week I found a lot of materials I used as teaching assistant. Among those materials I found some class notes from Arne Henningsen, the author of micEcon R package. I'll use that package and some others to show some concepts from Microeconomic Theory. Packages installation: #install.packages(c("... [Read more...]