Monthly Archives: July 2011

Word Cloud in R

July 27, 2011
By
Word Cloud in R

A word cloud (or tag cloud) can be an handy tool when you need to highlight the most commonly cited words in a text using a quick visualization. Of course, you can use one of the several on-line services, such as wordle or tagxedo ,...

Read more »

RStudio available at cloudnumbers.com

RStudio available at cloudnumbers.com

RStudio™ is an integrated development environment (IDE) for the statistical software R (www.r-project.org). It combines an intuitive user interface with powerful coding tools to help you get the most out of R. cloudnumbers.com provides researchers and companies with the access to resources to perform high performance calculations in the cloud. One often used application at cloudnumbers.com’s

Read more »

Bayesian Core and loose logs

July 26, 2011
By
Bayesian Core and loose logs

Jean-Michel (aka Jean-Claude!) Marin came for a few days so that we could make late progress on the revision of our book Bayesian Core towards an Use R! version. In one of the R programs in the mixture chapter, we were getting improbable answers, until we found an R mistake in the shape of which

Read more »

The Luck and Skill of Scrabble

July 26, 2011
By
The Luck and Skill of Scrabble

Scrabble is a game that involves both skill and luck. There's skill in knowing the words you can play and — especially — the most advantageous ways to play them. But there's also luck in the tiles you draw randomly from the bag: get saddled with a rack containing four I's and there's usually not much you can do....

Read more »

Two-way CRAN

July 26, 2011
By
Two-way CRAN

Sooner on later, every useR will manage to exhaust R’s built-in capabilities and land on CRAN looking for his dreamed needle in a haystack of 3k+ contributed packages. Probably most of you already know stuff like Task Views or rseek which make finding something relevant a bit easier than digging the full list or googling, however all methods

Read more »

JAGS 3.0.0 is released

July 25, 2011
By
JAGS 3.0.0 is released

Somewhat later than I originally planned, JAGS 3.0.0 is released and can be downloaded from Sourceforge.  The corresponding R interface package rjags has been uploaded to CRAN There are no new modules or features in this release. I have been … Continue reading →

Read more »

Rahul Dravid – a legend in Test Cricket

July 25, 2011
By
Rahul Dravid – a legend in Test Cricket

Rahul Dravid is a fantastic cricketer, and a role model for younger generation - focused, hardworking and humble.Dravid recently became the 2nd highest scorer in Test Cricket (Sachin Tendulkar is the leading scorer). His contribution to India...

Read more »

Really useful R package: sas7bdat

July 25, 2011
By
Really useful R package: sas7bdat

For SAS users, one hassle in trying things in R, let alone migrating, is the difficulty of getting data out of SAS and into R. In our book (section 1.2.2) and in a blog entry we've covered getting data out of SAS native data sets. Unfortunately, for ...

Read more »

Getting to know multivariate data

July 25, 2011
By
Getting to know multivariate data

psych::pairs.panels and corrgram::corrgram using mtcars data Core Ideas: multivariate modeling is challenging pair plots make it easy to get a quick understanding of each variable and the relationships between them Multivariate analysis and modeling can be really challenging. Getting the job done well requires you to know your data really well. People often use the

Read more »

Scatterplot matrices in R

July 25, 2011
By
Scatterplot matrices in R

I just discovered a handy function in R to produce a scatterplot matrix of selected variables in a dataset. The base graphics function is pairs(). Producing these plots can be helpful in exploring your data, especially using the second method below.Try...

Read more »

Sponsors

Mango solutions



plotly webpage

dominolab webpage



Zero Inflated Models and Generalized Linear Mixed Models with R

Quantide: statistical consulting and training

datasociety

http://www.eoda.de





ODSC

ODSC

CRC R books series





Six Sigma Online Training









Contact us if you wish to help support R-bloggers, and place your banner here.

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)