Monthly Archives: June 2012

setting your working directory permanently in R

June 24, 2012
By

Most of us R users are using a special working directory for the daily work in R. But I was bothered in typing everytime in my command line prior using R. Also using this line at the first position in scripts was not pleasent enough. So how to get around this? There is a special

Read more »

Using twitteR to see, what german press secretary tweets about

June 24, 2012
By
Using twitteR to see, what german press secretary tweets about

Find the HTML-slides here, and the .Rmd-file that was used to generate here. How to deal with .Rmd-files, see here What this is about These are my first steps to play around with the interface from R to twitter, using the twitteR-package. We will load the latest 1500 (maximum the API allows) tweets from the

Read more »

Actuarial models with R, Meielisalp

June 23, 2012
By
Actuarial models with R, Meielisalp

I will be giving a short course in Switzerland next week, at the 6th R/Rmetrics Meielisalp Workshop & Summer School on Computational Finance and Financial Engineering organized by ETH Zürich, https://www.rmetrics.org/. The long...

Read more »

Framing investing as a decision-making process

June 23, 2012
By
Framing investing as a decision-making process

Brian Peterson and I had a chance to visit the University of Washington a couple of weeks ago at the behest of Doug Martin, where we gave a seminar covering various R packages we’ve written. Here are the slides we used. We also had quite a bit of time that we spent with Doug, Eric

Read more »

Retweets, Modified Tweets, vias: what’s in the SoMeLab dataset

June 23, 2012
By
Retweets, Modified Tweets, vias: what’s in the SoMeLab dataset

  Since October we have been collecting tweets related to the Occupy movement and so far we’ve picked up 64,298,104 tweets. In future posts we will give you some insight into our process, but today the question is, what is the difference between new style retweets, old style retweets and new emerging tags like MT?

Read more »

Handling large FASTA sequence datasets in R: Shuffle and retrieve "n" number of sequences of fixed length from the whole FASTA file and export them in a new FASTA file.

June 23, 2012
By

When you are working with large FASTA datasets is probable to find out that the sequences are in sort of a mixed quality (obviously, depending on your scientific question),I mean for example, imagine that you retrieve the whole collection of exons of a...

Read more »

The R-Podcast Screencast 2: Visualization with ggplot2

June 23, 2012
By

Here is the second screencast episode of the R-Podcast to accompany episode 8 of the R-Podcast: Visualization with ggplot2. In this screencast I demonstrate a real-time session of using ggplot2 to create boxplots for a visualization of hockey attendance in the NHL. The R code created in this screencast is available in our GitHub repository,

Read more »

Rcpp 0.9.11

June 22, 2012
By

Release 0.9.11 of Rcpp arrived on CRAN this morning and in Debian later today. This is a somewhat incremental release with a few internal improvements and few new features. One interesting new development has been contributed by John Chambers who i...

Read more »

Maps of changes in area boundaries, with R

June 22, 2012
By
Maps of changes in area boundaries, with R

Today a coworker needed some maps showing boundary changes. I used what I learned last week in the useR 2012 geospatial data course to make a few simple maps in R, overlaid on OpenStreetMap tiles. I’m posting my maps and … Continue reading →

Read more »

Updates to Old code

June 22, 2012
By
Updates to Old code

I notice from time to time that people download code from the drop box. The drop box lags  CRAN.  I’ve upload the newest versions to the drop box. In the future I will post new releases to the drop box before I submit to CRAN.

Read more »

Sponsors

Mango solutions



RStudio homepage



Zero Inflated Models and Generalized Linear Mixed Models with R

Dommino data lab

Quantide: statistical consulting and training



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)