pacha.dev/blog - Summary notes about R, Shiny, SQL, Python, Linux and C++

The R-Universe provides a very simple way to create personal CRAN-like repos, which means a way to show your collection of tools in use to the community.

Aug 26, 2021

Usando el R-Universe

R-Universe

El R-Universe proporciona una forma muy sencilla de crear repositorios personales tipo CRAN, lo que significa una forma de mostrar su colección de herramientas en uso a la comunidad.

Aug 26, 2021

analogsea: Using Arrow, S3 and DigitalOcean for efficient model fitting in RStudio

DigitalOcean

Arrow

How to fit models by using the cloud with a minimal data transfer to your laptop.

Jul 17, 2021

Wes McKinney InteRview

Interviews

Arrow

The road to ease data access easier and making research results more reproducible.

Jun 6, 2021

Microeconomic Theory and Linear Regression

Linear models

Linear models and models comparison to estimate apples production.

Apr 2, 2021

Hyperplane Separation Theorem

Linear models

A proof made under a “divide and conquer” approach.

Feb 21, 2021

The Hitchhiker’s Guide to Ggplot2 and Plotnine Flash Sale

Python

Ggplot2

Plotnine

These books will help you master R and Python plots the easy way.

Jan 4, 2021

SQL Databases for Students and Educators

SQL

Different SQL engines to cover small edge cases when moving between DB back ends

Sep 18, 2020

A Crash Course on PostgreSQL for R Users

SQL

How to read and write data in efficient ways

Aug 9, 2020

The Hitchhiker’s Guide to Ggplot2 is for sale at $10.00

Ggplot2

The Hitchhiker’s Guide to Ggplot2 is for sale at $10.00

May 12, 2020

Dr. Julia Silge InteRview

Interviews

NLP

NLP, reproducible workflows, data science role, and more. This is the best blog entry that you’ll ever find in my blog.

Apr 14, 2020

Thomas Lumley InteRview

Interviews

Survey analysis in R, community contributions, and more.

Apr 9, 2020

Apply for the Google Summer of Code and Help Us Improving The R Code Optimizer

Contribute to open-source while earning some cash.

Mar 20, 2020

LP and Tidy Data Principles

NLP

Searching keywords and patterns in LP songs.

Feb 4, 2020

A full RStudio Server setup for Package Development in 5 minutes

DigitalOcean

Go from zero to a full setup to fit models in a few clicks.

Dec 21, 2019

The Hitchhiker’s Guide to Ggplot2 + The Hitchhiker’s Guide to Plotnine

Python

Ggplot2

Plotnine

This book will help you master Python plots the easy way.

Dec 21, 2019

The Hitchhiker’s Guide to Plotnine

Python

This book will help you master Python plots the easy way.

Oct 27, 2019

A full RStudio Server setup to use H2O in 5 minutes

RStudio

RStudio Server

DigitalOcean

Go from zero to a full setup to fit models in a few clicks.

Oct 5, 2019

d3po: R package for easy interactive D3 visualization with Shiny

Shiny

The definitive htmlwidget is a combination of existing ideas, blended in a different way.

Sep 22, 2019

Open Trade Statistics: An Independent project that values reproducible research and provides tidy trade data

Shiny

A nice example of R in production, in my opinion.

Sep 22, 2019

Hyde Mod: A blogdown theme with full XML feed and custom MathJax for equation numbering

Blogdown

A customized theme for blogdown and hugo.

Sep 8, 2019

An updated version of The Hitchhiker’s Guide to Ggplot2

Ggplot2

This book will help you master R plots the easy way.

Sep 8, 2019

A new image on DigitalOcean to start using RStudio Server without waiting more than 2 minutes

RStudio

RStudio Server

Ubuntu

DigitalOcean

I initially made an image for DigitalOcean because I wanted to spend my lectures and workshops giving useful examples and not solving software installation issues.

Apr 27, 2019

How to install R on Mac, Ubuntu and Windows

OS X

Linux

Windows

This is a beginner guide that is designed to save yourself a headache and valuable time if you decide to install R yourself.

Apr 7, 2019

Creating LaTeX figures with Inkscape

Latex

Inkscape

Searching keywords and patterns in the TV show.

Dec 18, 2018

Compiling R with multi-threaded linear algebra libraries on Ubuntu

Linux

A guide for multithreaded R performance

Apr 21, 2018

How many sticker envelopes do I need to complete the FIFA World Cup album?

A simple simulation written in R

Apr 14, 2018

Writing tables into a PostgreSQL database using R

SQL

A short guide to install and use RPostgreSQL and/or odbc packages.

Mar 14, 2018

Is Microsoft R Open faster than CRAN R?

Installing R with different numerical libraries and benchmarking them.

Dec 2, 2017

Rick and Morty and Tidy Data Principles (Part 3)

Rick and Morty

NLP

Searching keywords and patterns in the TV show.

Nov 6, 2017

Rick and Morty and Tidy Data Principles (Part 2)

Rick and Morty

NLP

Searching keywords and patterns in the TV show.

Oct 22, 2017

Quickly Install R on Ubuntu 17.10

Linux

Ubuntu

Install R on Ubuntu the fast way and without missing dependencies.

Oct 20, 2017

Rick and Morty and Tidy Data Principles (Part 1)

Rick and Morty

NLP

Searching keywords and patterns in the TV show.

Oct 13, 2017

Quickly Install R on Ubuntu 16.04

Linux

Ubuntu

Install R on Ubuntu the fast way and without missing dependencies.

Oct 3, 2017

Install R, Python and Pelican Blog Tool on Windows

Python

Pelican

Windows

Install R and more tools using Chocolatey package manager.

Aug 28, 2017

Install GNU and non-GNU Tools via Homebrew

OS X

Install GNU and non-GNU tools using Homebrew, and save yourself a headache and valuable time when you need newer software versions.

Jul 15, 2017

Working With SPSS Data in R

SPSS

Work with SPSS format and labelled data in R.

Jun 24, 2017

Linear Regression and ANOVA shaken and stirred (Part 2)

Linear models

These concepts are understood as separate concepts most of the times. The truth is they are extremely related to each other.

Mar 21, 2017

Linear Regression and ANOVA shaken and stirred (Part 1)

Linear models

These concepts are understood as separate concepts most of the times. The truth is they are extremely related to each other.

Mar 20, 2017

Structural Equation Modelling in R (Part 2)

Latex

Linear models

Here we explain how to estimate SEM models coefficients without a theoretical introduction

Jan 15, 2017

Install R and Python via Homebrew

Python

OS X

Install R and more tools using Homebrew, and save yourself a headache and valuable time when you need newer software versions.

Jan 8, 2017

Using googlesheets and mailR packages in R to automate reporting

Google Sheets

Using Excel for reporting has its drawbacks, here I share a way to solve some of those drawbacks.

Dec 18, 2016

Mauricio “Pachá” Vargas S.

Structural Equation Modelling in R (Part 1)

Latex

Linear models

Here I explain how to estimate CFA models coefficients without a theoretical introduction

Dec 7, 2016

Mauricio “Pachá” Vargas S.

RStudio Server on OS X Sierra

RStudio

RStudio Server

OS X

I had to install RStudio Server in a computer recently upgraded to OS X Sierra.

Nov 25, 2016

Mauricio “Pachá” Vargas S.

Joy Division’s Unknown PleasuRes

Ggplot2

I wanted to create a wallpaper and here’s how I solved white borders and some difficulties.

Nov 9, 2016

Mauricio “Pachá” Vargas S.

RStudio Server on OS X El Capitan

RStudio

RStudio Server

OS X

This is the result of trial and error until I got RStudio Server working in my network.

Oct 21, 2016

Mauricio “Pachá” Vargas S.

Beamer template to write in english and chinese

Latex

Very basic tutorial with downloadable examples.

Jun 16, 2016

Mauricio “Pachá” Vargas S.

Creating a timeline using R

Step by step tutorial to create a timeline that you can open on any browser.

Feb 2, 2016

Mauricio “Pachá” Vargas S.

Using Rmd Markdown in Pelican

Python

A definitive setup for OSX.

Dec 25, 2015

Mauricio “Pachá” Vargas S.

LaTeX Quick Tutorial

Latex

Very basic tutorial with downloadable examples.

Sep 17, 2015

Mauricio “Pachá” Vargas S.

LaTeX Thesis Template

Latex

Very basic tutorial with downloadable examples.

Jul 14, 2015

Mauricio “Pachá” Vargas S.

Categories

The Hitchhiker’s Guide to Linear Models is now complete

An R package with Baltagi’s ‘Econometric Analysis of Panel Data’ datasets

The Hitchhiker’s Guide to Econometrics with Available Code in R

The Hitchhiker’s Guide to Econometrics: Based on the famous R programming language

Plotting a COVID-19 vaccination map with different projections (with updated versions of canadamaps and tintin)

One Weird Trick to Make Ggplot2 Columns the Same Width

Text Analysis in R - Exploring Barbie and Oppenheimer Reviews - Part 1

Canadian Hansard Live Database

Workshop: Analyzing BarbieHeimer texts with R

R and/or Python training - 4 sessions - With discount

Step-by-Step Guide to Scrape UN Comtrade metadata with R and Selenium

A naive simplex phase 2 implementation with C++ 11 and R

Using Custom TeX Fonts (Lucida and Minion Pro) in Quarto

I’m hiring a C++ tutor who knows R

Linear Models in R - Part 1

Linear Models in R - Part 2

Linear Models in R - Part 3

The Hitchhiker’s Guide to GGplot2 and Plotnine Updated and With Discount

Credible intervals with Capybaras, Python and Stan (cmdstanpy interface)

Credible intervals with Capybaras, R and Stan (rstan and cmdstanr interfaces)

Building a basic Shiny app with Golem - Part II (Video)

Write a function with Python and R

Tidy Freedom Index as an R Package

Student’s t-test explained with R and Pokemon

(Update) How to install RStudio, RStudio Server and Quarto with ‘apt install’

Building a basic Shiny app with Golem - Part I (Video)

Moving from bookdown to Quarto (and the corresponding GitHub Actions changes)

Debunking the idea that cpp11 does not offer OpenMP support

Tidying the Freedom Index

‘ggplot2’ Palettes From Tintin Comic Books

Moving from Blogdown to Quarto

Cpp11 (R package) vendoring

An introductory workshop in Shiny, June 1st from 17.30 to 18.30 (FREE)

A step by step guide to write an R package that uses C++ code (Ubuntu)

Using bookdown with gh-pages

(Update) How to install RStudio and Quarto with ‘apt install’

Modifying the shinydashboard theme with one line

The Perfect Setup for Ubuntu and R (and how to install/update RStudio with apt install rstudio/apt update)

Install the sf package on Ubuntu 20.04

Export in Bananen in Tonnen von 1994-2005 (Banana exports in tonnes from 1994-2005)

R and Shiny Training

SQL Databases for Students and Educators

R and Shiny Training

Clases de R y Shiny en Castellano

Entrevista con la Dra. Julia Silge

¿Es Pi Aleatorio?

Un extraño truco para obtener el máximo (o el mínimo)

Leaving a PhD Program

Generalized Linear Models, Part I: The Logistic Model

Comparing CENSO 2017 versions for Python and R

One Weird Trick to Obtain the Maximum (or Minimum)

leaRn! (learn R)

RStudio on Kubernetes

Shinywordle: A shiny app to solve the game Worldle and the power of regular expressions

Using Arrow with Shiny

Comparing SQLite, DuckDB and Arrow with UN Trade Data

Using the R-Universe

Usando el R-Universe

analogsea: Using Arrow, S3 and DigitalOcean for efficient model fitting in RStudio

Wes McKinney InteRview

Microeconomic Theory and Linear Regression

Hyperplane Separation Theorem

The Hitchhiker’s Guide to Ggplot2 and Plotnine Flash Sale

SQL Databases for Students and Educators

A Crash Course on PostgreSQL for R Users

The Hitchhiker’s Guide to Ggplot2 is for sale at $10.00

Dr. Julia Silge InteRview

Thomas Lumley InteRview

Apply for the Google Summer of Code and Help Us Improving The R Code Optimizer

LP and Tidy Data Principles

A full RStudio Server setup for Package Development in 5 minutes

The Hitchhiker’s Guide to Ggplot2 + The Hitchhiker’s Guide to Plotnine

The Hitchhiker’s Guide to Plotnine

A full RStudio Server setup to use H2O in 5 minutes

d3po: R package for easy interactive D3 visualization with Shiny

Open Trade Statistics: An Independent project that values reproducible research and provides tidy trade data

Hyde Mod: A blogdown theme with full XML feed and custom MathJax for equation numbering

An updated version of The Hitchhiker’s Guide to Ggplot2

A new image on DigitalOcean to start using RStudio Server without waiting more than 2 minutes