Visually Enforced

a blog by Gaston Sanchez

Matching student names for class attendance

December 03, 2018

This post describes an interesting string-matching problem that I faced when tracking students’ attendance, using google forms, in one of my courses.

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Converting HTML files to PDF

November 10, 2017

Using wkhtmltopdf to convert HTML files into PDF format.

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Promoting Open Science

June 11, 2016

This week (June 7-10) I was able to fulfill a promise made long ago to my dearest friend and colleague Dr. Lucas Lopez Segovia: to visit the Division of Ciencias Basicas (DACB) at the Universidad Juarez Autonoma de Tabasco (UJAT).

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Football-shaped scatterplot

March 23, 2016

Using R to plot a football-shaped scatter diagram.

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Shiny Apps for Introductory Statistics

February 16, 2016

Sharing the shiny apps for my “STAT 2: Introduction to Statistics” course at UC Berkeley.

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Colored jittery text

January 05, 2016

Using R to plot colored jittery text, just for fun.

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Rtist featured in R graph gallery

November 06, 2015

Rtist now being feature in the new R graph gallery.

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Solving the Crocodile Math Problem in R

October 19, 2015

Using R to solve the crocodile math problem from the Scottish Higher Maths exam of May 2015.

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R Graphical Parameters Cheat Sheet

September 22, 2015

This is probably one of my shortest posts, but this doesn’t mean that it is useless.

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The Saga of PLS

April 17, 2015

As some of you know, one of my favorite research topics has to do with Partial Least Squares (PLS) methods. Along with my interest in theoretical considerations, methodological aspects, practical applications, and software tools, one of my long standing obsessions has been related to the historical side of PLS methods.

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