Author Archives: tylerrinker

About tylerrinker

Data Scientist and Open-source developer/contributor with a bent for the quantitative and a passion for text analysis.

ggplot2: How Geoms & Aesthetics ≈ Whipped Cream

Posted on March 21, 2018

In this post I have a few goals: 1. Become (re-)familiar with available geoms 2. Become (re-)familiar with aesthetic mappings in geoms (stroke who knew?) 3. Answer these questions: How often do various geoms appear and how often do they … Continue reading →

Posted in analysis, data, ggplot2, r, tidyverse, trinker, tylerrinker, Uncategorized | Tagged , , , , , | 10 Comments

Math Notation for R Plot Titles: expression, bquote, & Greek Letters

Posted on March 15, 2018

In this post you will learn: How to create expressions that have mixed (1) strings, (2) expressions, (3) variables & (4) Greek letters How to pass in values as variables to an expression I wanted to name this post “Ahhhhhhhhhhh #$@%&!!!!” … Continue reading →

Posted in ggplot2, plot, r, trinker, tylerrinker, visualization, work flow | Tagged , , , , , , , , , , | 5 Comments

Using R to Reason & Test Theory: A Case Study from the Field of Reading Education

Posted on February 28, 2018

Note: Word Press messes up the code. Find the code here: https://github.com/trinker/RandomCaseEffect This past week I was preparing slides for a reading assessment class with a lecture focus on the Visual Word Form Area [VWFA] (Cohen, et al., 2000). This … Continue reading →

Posted in grapheme, letter, r, text, trinker, tylerrinker | Tagged , , , , , , , , , | 5 Comments

Minimal, Explicit, Python Style Package Loading for R

Posted on February 22, 2018

About a year and a half back I was working in Python a bit and became accustomed to the explicit importing of modules (akin to R packages) and functions. Python imports packages like this: import tidyr import dplyr as dp … Continue reading →

Posted in r, Uncategorized | Tagged , , , , , | 6 Comments

Easily Make Multi-tabbed .xlsx Files with openxlsx

Posted on February 14, 2018

This is a quick script showing how to make multi-tabbed .xlsx files. I recently had the need to do this and used the flexible openxlsx package maintained by : Alexander Walker. The package is described by the author like this: … Continue reading →

Posted in r, reports, work flow | Tagged , , , , , , , , | 5 Comments

Ordering Categories within ggplot2 Facets

Posted on December 23, 2016

I saw Simon Jackson’s recent blog post regarding ordering categories within facets. He proposed a way of dealing with the problem of ordering variables shared across facets within facets. This problem becomes apparent in text analysis where words are shared … Continue reading →

Posted in ggplot2, r, text, tidytext, tidyverse, tylerrinker, visualization | Tagged , , , , , | 14 Comments

googleformr at Work: Pneumatic Road Tube Allegory

Posted on May 12, 2016

Steve Simpson (@data_steve) created the googleformr package to enable users to easily send information to a Google Form.  It’s a nice way to send and securely store data via R and the price is great…FREE! A Pneumatic Road Tube Allegory…Kinda … Continue reading →

Posted in analysis, r, work flow | Tagged , , , , , , | 8 Comments

pacman Ver 0.4.1 Release

Posted on March 31, 2016

It was just over a year ago that Dason Kurkiewicz and I released pacman to CRAN.  We have been developing the package on GitHub in the past 14 months and are pleased to announce these changes have made their way … Continue reading →

Posted in Uncategorized, work flow | Tagged , , , , , | 4 Comments

How do I re-arrange??: Ordering a plot re-revisited

Posted on March 3, 2016

Several years back I wrote a two part blog series in response to seeing questions about plotting and reordering on list serves, talkstats.com, and stackoverflow.  Part I discussed the basics of reordering plots by reordering factor levels.  The essential gist was: … Continue reading →

Posted in factor, ggplot2, r, visualization | Tagged , , , , | 4 Comments

Cracking Safe Cracker with R

Posted on May 30, 2015

My wife got me a Safe Cracker 40 puzzle a while back. I believe I misplaced the solution some time back. The company, Creative Crafthouse, stands behind their products. They had amazing customer service and promptly supplied me with a … Continue reading →

Posted in games, r | Tagged , , , , | 5 Comments