1786 search results for "Ggplot2"

Tracking execution paths

June 18, 2011
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Tracking execution paths

Earlier this week, I was trying to figure out the path of execution through a big chunk of code. Once you reach a certain size of codebase, tracking which function gets called when can be tricky. My first thought for dealing with this was to add a message line at the start of each function

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Statistical Analysis of the LAC Degerloch Volkslauf 2010

June 15, 2011
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Statistical Analysis of the LAC Degerloch Volkslauf 2010

Inspired by a post by a R-blogger my interest was piqued to examine the runs in my athletic club. Therefore, I started R and analysed he LAC Degerloch Volkslauf 2010; a 10km race near Stuttgart-Hoffeld. Next lines, I present this statistical examination. The data can be found at: data. Firstly, I converted the data

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R: Analyisis of a Sport Event

June 15, 2011
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R: Analyisis of a Sport Event

Inspired by a post by a

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Wilcoxon Champagne test

June 14, 2011
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Wilcoxon Champagne test

As an appetizer for Paris triathlon, Jérôme and I ran as a team last week-end an adventure racing in Champagne region (it mainly consists in running, cycling, canoeing, with a flavor of orienteering, and Champagne is kept for the end). It was organized by Ecole Polytechnique students who, for the first time, divided Saturday’s legs

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Donor analysis in R – Smith for Congress

June 13, 2011
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Donor analysis in R – Smith for Congress

In a previous post I introduced the Smith for Congress data set. The data is 49k contributions made by individuals to a congressional campaign for the 2006-2010 electoral cycles. Smith for Congress is not the name of the actual campaign. Individual contributions are not required to be disclosed by a campaign unless the individual donates

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Two Castles Run 2011

June 12, 2011
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Two Castles Run 2011

I did the Two Castles Run today; it’s a 10km race between Warwick and Kenilworth castles. The organizers were very quick to put the results online and even went the extra mile of offering them as a CSV file. It … Continue reading →

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Identifying and characterizing droughts with R

June 11, 2011
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Identifying and characterizing droughts with R

Recently, I’ve been playing with patterns of drought in paleo records of streamflow. One of the earliest and most helpful tools I’ve developed, identifies and characterizes droughts in extremely long time series using R. I’m still hacking my way through it, but this is what has been cooking thus far… For this example I’ll be

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Simple plyr/ggplot example of cummulative distribution plots

June 9, 2011
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Simple plyr/ggplot example of cummulative distribution plots

I’ve been a big fan of ggplot2 for a long time but plyr has been in my toolkit for less than a year and it is now one of my most-used R packages. It is how aggregate/*apply would have been if they were awesome. In five lines this code computes the cumulative distribution functions of

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Rejection Sampling

June 9, 2011
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Rejection Sampling

An interesting sampling method that was covered briefly in my Bayesian statistics course was rejection sampling. Since I have nothing better to do, I thought it would be fun to make an acceptance-rejection algorithm using R. FUN!The Rejection Sampling method is usually used to simulate data from an unknown distribution. To do this one samples...

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The R-Files: Jeroen Ooms

June 9, 2011
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The R-Files: Jeroen Ooms

"The R-Files" is an occasional series from Revolution Analytics, where we profile prominent members of the R Community. Name: Jeroen Ooms Background: Ph.D. Candidate, Statistics, UCLA Nationality: Netherlands Years Using R: 3 1/2 Known for: Developing web applications for popular R packages including ggplot2, lme4, stockplot and irttool Jeroen Ooms is a statistical consultant and R enthusiast currently pursuing...

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