Publications by C

R Studio and "Advanced R Development"

05.02.2014

Well, I am tuning back in after a brief hiatus (what’s a year-or-two-or-four between friends)?  Among other things, I just wrapped up a book for O’Reilly Media (Client-Server Web Apps with JavaScript and Java) due out in the Spring.   Please buy a copy or fifty if you are into that sort of thing.  Another project involving R has begun, and...

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R and (Software) Relatives

18.02.2014

Post also available with code executed inline at rpubs.com.O’Reilly recently published the results of a survey from attendees of the Strata Conference related to tool usage and salary.  The entire survey is available for download.  In the survey results, R was heralded as second only to SQL as a tool used by conference attendees.  An char...

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Retrospective: Writing an O’Reilly Book

31.05.2014

A number of people have asked me about the amount of time and effort involved in writing a book as I just completed one for O’Reilly (published in April and is available on Amazon).   The process at O’Reilly is unique in that a book is written and initially formatted on an application called Atlas. Ilya Grigorik also wrote an O’Reilly bo...

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"RStudio:Get Started" Screencasts

09.01.2015

I just wrapped up a course introducing R and RStudio with Pluralsight!  RStudio: Get Started covers  a range of topics on R itself and RStudio.  My fellow Pluralsight author Abhishek Kumar recently produced an introductory course called R Programming Fundamentals as well.  These courses  augment the growing selection of business and techn...

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R Open Source and Commercial Support

23.01.2015

With today’s announcement that Microsoft will acquire Revolution Analytics, it is worthwhile to consider the commercial support that has existed in different forms throughout the history of this open source language. R was based on S, which was initially developed by John Chambers at Bell Laboratories in the 1970s.R itself appeared in 1...

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R Basics at Simple Talk

05.03.2015

News that Microsoft will acquire Revolution Analytics has raised interest about R among SQL Server and .NET developers and administrators.  Simple-Talk is an online technical journal and hub for a community of such users.  I just wrote an article called R Basics that introduces R, R Studio, dplyr and ggplot2.  A whirlwind tour, but some of ...

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R Oddities: Strings in DataFrames

29.07.2015

Have you ever read a file into R and then encountered strange problems filtering and sorting because the strings were converted to factors?  For instance, you might think the two data frames, df and df2 below are contain the same data> df-data>> write.csv(df, ‘df.csv’)> df2-read>But look the dimensions are different> dim(df)[1] 1 1> dim(df...

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R Oddities: Strings in DataFrames

29.07.2015

Have you ever read a file into R and then encountered strange problems filtering and sorting because the strings were converted to factors?  For instance, you might think the two data frames, df and df2 below are contain the same data> df-data>> write.csv(df, ‘df.csv’)> df2-read>But look the dimensions are different> dim(df)[1] 1 1> dim(df...

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R Graphical Systems

24.08.2015

Just had an article published over at Simple Talk about the 3 R Major R Graphical Systems:https://www.simple-talk.com/content/article.aspx?article=2271 Related To leave a comment for the author, please follow the link and comment on their blog: R-Chart. R-bloggers.com offers daily e-mail updates about R news and tutorials about learning R an...

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R Graphical Systems

24.08.2015

Just had an article published over at Simple Talk about the 3 R Major R Graphical Systems:https://www.simple-talk.com/content/article.aspx?article=2271 Related To leave a comment for the author, please follow the link and comment on their blog: R-Chart. R-bloggers.com offers daily e-mail updates about R news and tutorials about learning R an...

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