Articles by C

Investigating Cryptocurrencies (Part II)

July 17, 2017 | C

This is the second in a series of posts designed to show how the R programming language can be used with cryptocurrency related data sets.  A number of R packages are great for analyzing stocks and bonds and similar financial instruments.  These can also be applied to working with cryptocurrencies.  ...
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Investigating Cryptocurrencies using R

July 15, 2017 | C

Cryptocurrencies are a fascinating phenomenon and excellent data source for analysis with R.  This post will introduce how to get a list of available currencies into R.  Wikipedia maintains a page with a list of cryptocurrencies.  These can be read from HTML into a data frame.library(httr)library(XML)...
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Package rtrie on CRAN

January 7, 2017 | C

Just had a new package published on CRAN...rtrie :).The rtrie package allows you to quickly create Tries from a list of strings.  Example use cases for the package are word searching in games like Boggle or Scrabble or implementation of applications that  autocomplete or autocorrect text.   Incidentally, besides being ...
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New Release of ggguitar available on CRAN

December 24, 2016 | C

Based on feedback ggguitar has been updated and released on CRAN.  The updated vignette includes more examples of how the package can be used.  Example below as well: Update - Blogger was reformatting the R code - so made it available in this gist instead.Merry Christmas.
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Understanding SQL and R Training Video

December 2, 2016 | C

Just had a video series released by O'Reilly Media on infiniteskills.com:https://www.infiniteskills.com/training/understanding-sql-and-r.htmlThis course shows you how to combine two of the most popular technologies used in data analytics: SQL and R.  Complete this course and you'll learn the basics of a skill set ...
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Package ggguitar on CRAN

November 30, 2016 | C

The initial release of ggguitar is available on CRAN!  This package allows you to create guitar tablature in the style of ggplot2.  As a quick example, the C Major chord shown above can be created as follows.library(ggguitar)C_M -__tablature('C Major', C_M)The tablature function ...
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SQLServer on Docker

November 19, 2016 | C

I have been looking forward to test driving Microsoft SQLServer R Services.   However, I don't run the Windows Operating System on any of my machines.  I do use Docker regularly and so was interested to hear about a new version of SQLServer that runs on Linux that is now available ...
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Apollo Moon Landings

October 17, 2016 | C

Welcome to the second in a series of posts of maps-to-places-I-am-unlikely-to-visit generated by R (the previous post is here).A bit-o NASA data, the R threejs library and a few lines of code can be used to create an interactive map that identifies the landing locations of Apollo lunar landing ...
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The Grammar of Graphics and Radar Charts

October 15, 2016 | C

A radar chart (also known as a web chart, spider chart, or star chart) is described on Wikipedia as 'a two-dimensional chart of three or more quantitative variables represented on axes starting from the same point.'  Although this is an accurate description, it does not express the design and ...
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Map of Middle Earth in R

October 8, 2016 | C

Map of Middle EarthThe map above was created using ggplot2, ggmaps, and maptools in R.  These are just a few of the great R packages available for cartography and geographic applications.  Many readers of this blog will be familiar with these packages and more recent R package additions like leaflet.  ...
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Data Manipulation in R: Beyond SQL

January 19, 2016 | C

As a follow up to an article on using SQL in R, I just had an new article published at Simple Talk that considers ways to manipulate data in R that are cumbersome in SQL as well as ways to replace SQL statements with functional equivalents. [Read more...]

Data Manipulation in R: Beyond SQL

January 19, 2016 | C

As a follow up to an article on using SQL in R, I just had an new article published at Simple Talk that considers ways to manipulate data in R that are cumbersome in SQL as well as ways to replace SQL statements with functional equivalents. [Read more...]

R / Shiny Poll Results

December 28, 2015 | C

A few days ago I posted a poll directed towards R (and Shiny Users).  Thank you to all who participated for your time and thoughtful responses.  A RMarkdown Report (Code on Github) highlights the results to the easy-to-summarize que... [Read more...]

R / Shiny Poll Results

December 28, 2015 | C

A few days ago I posted a poll directed towards R (and Shiny Users).  Thank you to all who participated for your time and thoughtful responses.  A RMarkdown Report (Code on Github) highlights the results to the easy-to-summarize questions.  A few interesting insights: 78% of R users use Windows.  The largest ... [Read more...]

R / Shiny User Survey

December 16, 2015 | C

I have been using R for a few years and have been amazed at the variety of people who use the language.  R has an unusually diverse and creative community.   If you are an R user, I would really like to learn a bit more about how you use R ... [Read more...]

Blog Post at Pluralsight

November 13, 2015 | C

Final post in the three part series is now up at Pluralsight.  The series is geared towards business users so if you have some friends that you are encouraging to set aside their spreadsheets and take R for a spin - send them this way!http://blog.... [Read more...]

Blog Post at Pluralsight

November 13, 2015 | C

Final post in the three part series is now up at Pluralsight.  The series is geared towards business users so if you have some friends that you are encouraging to set aside their spreadsheets and take R for a spin - send them this way!http://blog.pluralsight.com/r-for-business-part-three ... [Read more...]

R Articles at Pluralsight

October 27, 2015 | C

R Articles at Pluralsight The first two articles in a series of posts on R for Business users are available at Pluralsight. R For Business Users Part 1: Importing Data R For Business Users Part 2: Data Cleaning  [Read more...]
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