Montreal R User Group meetup Nov. 14th

October 29, 2012 | Corey Chivers

After a bit of a summer lull, the Montreal R User Group is meeting up again! We’re trying out a new venue this time. Notman House is the home of the web in Montreal. They hold hackathons and other tech user group meetups, and they are all around great ... [Read more...]

Distribution of colors by flag

October 22, 2012 | is.R()

A story: We showed you how to use R to assess flag similarity and make a scatter plot of raster images. Dr. Wickham referred us to the set of 2400 flag icons made available by GoSquared, and then (probably jokingly) challenged us to replicate the cool... [Read more...]

Optimal seriation for your matrices

September 28, 2012 | is.R()

In our previous post, we used a quick-and-dirty method for ordering the axes on our heatmap. It has been pointed out to me that There is a Package for That (which is my nominee for a new slogan for R — not that it needs a slogan). seriation offe... [Read more...]

reshape (from base) Explained: Part II

May 5, 2012 | tylerrinker

Part II Explains More Complex  Wide to Long With base reshape  In part I of this base reshape tutorial we went over the basics of reshaping data with reshape.  We learned two rules that help us to be more efficient … Continue reading → [Read more...]

reshape (from base) Explained: Part I

May 2, 2012 | tylerrinker

This Post Will Explain the Basics of Wide to Long With base reshape (part I) Often your data set is in wide format and some sort of analysis or visualization requires putting the data set into long format.  Hadely Wickham … Continue reading → [Read more...]

Reshaping the IT world

February 16, 2012 | Markus Gesmann

During my university time I worked on the IT help desk for a while. One day I received a call from a professor, who said that his printer had stopped working. So I asked him, if there was a message on the display and if he could read it to ...
[Read more...]

The reshape function

February 9, 2012 | Markus Gesmann

The other day I wrote about the R functions by, apply and friends, which allow me to operate on subsets of data. All those functions work nicely, if the data is given in the right format. More often than not it isn't and I have to reshape the data befo...
[Read more...]

Your Data is Never the Right Shape

July 31, 2011 | John Mount

One of the recurring frustrations in data analytics is that your data is never in the right shape. Worst case: you are not aware of this and every step you attempt is more expensive, less reliable and less informative than you would want. Best case: you notice this and have ... [Read more...]

R Reshape Examples

February 19, 2011 | Earl Glynn

by Earl F. Glynn, Kansas Watchdog The goal of this article is to describe how to “reshape” data from screen scraping to make analysis with existing tools easier. Background The Kansas Secretary of State published Nov. 2010 election results ... [Read more...]

Example 7.10: Get data from R into SAS

August 13, 2009 | Ken Kleinman

In our previous entry, we described how to generate a dataset from SAS that could be used for analyses in R. Alternatively, someone primarily using R might want to test the new ”statistical graphics” procedures available starting with SAS 9.2. Her...
[Read more...]

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