Blog Archives

Plotting Time Series in R using Yahoo Finance data

August 27, 2015
By
Plotting Time Series in R using Yahoo Finance data

by Joseph Rickert I recently rediscovered the Timely Portfolio post on R Financial Time Series Plotting. If you are not familiar with this gem, it is well-worth the time to stop and have a look at it now. Not only does it contain some useful examples of time series plots mixing different combinations of time series packages (ts, zoo,...

Read more »

Following up on news stories with choroplethr and R

August 25, 2015
By
Following up on news stories with choroplethr and R

by Ari Lamstein, consultant specializing in software engineering and data analysis and author of the free email course Learn to Map Census Data in R. One of my favorite things about R is that it allows me to follow up on interesting news stories. Consider this interview on EconTalk about the history of fracking in America. Russ Roberts interviewed...

Read more »

5 New R Packages for Data Scientists

August 20, 2015
By
5 New R Packages for Data Scientists

by Joseph Rickert One great beauty of the R ecosystem, and perhaps the primary reason for R’s phenomenal growth, is the system for contributing new packages. This, coupled to the rock solid stability of CRAN, R’s primary package repository, gives R a great advantage. However, anyone with enough technical knowhow to formulate a proper submission can contribute a package...

Read more »

Using Azure as an R datasource, Part 4 – Pulling data from SQL Server to Linux

August 18, 2015
By
Using Azure as an R datasource, Part 4 – Pulling data from SQL Server to Linux

by Gregory Vandenbrouck Software Engineer, Microsoft This post is the fourth in a series that covers pulling data from Microsoft SQL Server or MySQL/MariaDB on Azure to an R client on Windows or Linux. In the previous posts, we covered pulling data from SQL Server to Windows and from MySQL/MariaDB to both Windows and Linux. This time we’ll be...

Read more »

R News From JSM 2015

August 13, 2015
By
R News From JSM 2015

by Joseph Rickert We can declare 2015 the year that R went mainstream at the JSM. There is no doubt about it, the calculations, visualizations and deep thinking of a great many of the world's statisticians are rendered or expressed in R and the JSM is with the program. In 2013 I was happy to have stumbled into a...

Read more »

How do you know if your data has signal?

August 11, 2015
By
How do you know if your data has signal?

by Nina Zumel Data Scientist Win-Vector LLC Image by Liz Sullivan, Creative Commons. Source: Wikimedia An all too common approach to modeling in data science is to throw all possible variables at a modeling procedure and "let the algorithm sort it out." This is tempting when you are not sure what are the true causes or predictors of the...

Read more »

A simple statnet model of CRAN

August 6, 2015
By
A simple statnet model of CRAN

by Joseph Rickert In a recent post on creating JavaScript network graphs directly from R, my colleague and fellow blogger, Andrie de Vries, included a link to a saved graph of CRAN. Here, I will use that same graph (network) to build a simple exponential random graph model using functions from the igraph package, and the network and ergm...

Read more »

A Short Introduction to Bioconductor

August 4, 2015
By
A Short Introduction to Bioconductor

by Peter Hickey (@PeteHaitch) One of the keys to R's success as a software environment for data analysis is the availability of user-contributed packages. Most useRs will be familiar with (and very grateful for) the Comprehensive R Archive Network (CRAN). The packages available on CRAN, nearly 7000 at last count, cover common data analysis tasks, such as importing data...

Read more »

MRAN’s Packages Spotlight

July 30, 2015
By
MRAN’s Packages Spotlight

by Joseph Rickert New R packages just keep coming. The following plot, constructed with information from the monthly files on Dirk Eddelbuettel's CRANberries site, shows a plot of the number of new packages released to CRAN between January 1, 2013 and July 27, 2015 by month (not quite 31 months). This is amazing growth! The mean rate is about...

Read more »

Efficient Accumulation in R

July 28, 2015
By
Efficient Accumulation in R

by John MountData Scientist, Win-Vector LLC R has a number of very good packages for manipulating and aggregating data (plyr, sqldf, RevoScaleR, data.table, and more), but when it comes to accumulating results the beginning R user is often at sea. The...

Read more »

Sponsors

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)