Blog Archives

Why is R slow? some explanations and MKL/OpenBLAS setup to try to fix this

November 19, 2017
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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 code and in precise terms because of not doing one...

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Rick and Morty and Tidy Data Principles (Part 3)

November 5, 2017
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Rick and Morty and Tidy Data Principles (Part 3)

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 repo of this project you shall find not just Rick...

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Rick and Morty and Tidy Data Principles (Part 2)

October 21, 2017
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Rick and Morty and Tidy Data Principles (Part 2)

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 new tab to show them in their original size. Term Frequency The...

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Quickly Install R on Ubuntu 17.10

October 19, 2017
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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...

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Rick and Morty and Tidy Data Principles

October 12, 2017
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Rick and Morty and Tidy Data Principles

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 the scripts to scrap the transcripts and subtitles of Rick...

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The Hitchhiker’s Guide to Ggplot2 in R

October 9, 2017
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The Hitchhiker’s Guide to Ggplot2 in R

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...

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Quickly Install R on Ubuntu

October 2, 2017
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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...

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Quickly Install R on Ubuntu 16.04

October 2, 2017
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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...

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Install R, Python and Pelican Blog Tool on Windows

August 27, 2017
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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, so I had to do a few steps I wasn't aware...

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Use R and Pelican on Windows

August 27, 2017
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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 I had to do a few steps I wasn't aware of...

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