March 2012

See how Deloitte uses R for actuarial analysis

March 29, 2012 | David Smith

Many thanks to Jim Guszcza (Predictive Analytics lead at Deloitte Consulting and Assistant Professor at UW-Madison) who gave a great webinar presentation yesterday on actuarial analysis with R. Jim's demo (starting at the 20 minute mark in the video replay below) is a great way to get a sense of how ... [Read more...]

PK models in R and in Julia

March 29, 2012 | Douglas Bates

1.1 Pharmacokinetic models with an analytic solution Pharmacokinetics is the study of the absorption and elimination of drugs and their metabolites in the body. As described in the wikipedia article there are several parameters, such rate constants,... [Read more...]

Updates to the Deducer family of packages

March 29, 2012 | Ian

Over the past month there have been a number of package updates in the deducer ecosystem. Deducer is a general purpose, extensible, data analysis GUI. It is designed to be a free easy to use alternative to proprietary data analysis software such as SPSS, JMP, and Minitab. It has a ... [Read more...]

Using wordcloud on search terms & phrases

March 28, 2012 | Tony

The wordcloud package for R is great, but all the examples I found used the tm package to process a large amount of textual data (web pages, text files, google docs, etc.)But what if you have normalized data where you have a word and its frequency? Or,... [Read more...]

email habits over time

March 28, 2012 | power

I was curious if my sleeping/waking habits had really changed over the years – I definitely don’t feel I work as late now as when I was 22, but it’s hard to tell. To test this, I looked over all … Continue reading → [Read more...]

robust pdf title extraction

March 28, 2012 | power

I end up with a lot of PDF documents lying around – at last glance, this amounted to a few thousand files. Unfortunately, most of these documents end up with rather obscure names, making it rather annoying to find what … Continue reading → [Read more...]

tcp timelines with ggplot2

March 28, 2012 | power

I’ve come across the need to analyze TCP flows from time to time, and while scripts like flowtime and EasyTimeline are nice, they aren’t really, well, pretty.  ggplot2, on the other hand is, and it turns out to be really easy to … Continue reading →
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Bigger data, better intelligence for government

March 28, 2012 | David Smith

Tomorrow (at 2PM Eastern on Thursday), the White House White House Office of Science and Technology Policy will host a 90-minute forum on Challenges and Opportunities in Big Data. You can watch the event live at the previous link, and see federal government science heads from OSTP, NSF, NIH, DoE, ... [Read more...]

U.S. Soldiers Died from What?

March 28, 2012 | Patrick Rhodes

Prior to WWII, the majority of soldiers died from disease and infection. The Invisible Enemy Often Killed You Before Your Political Enemy Imagine the scene: thousands of military men laying on cots, makeshift beds, or the floor ... [Read more...]

Go faster R for Google’s summer of code 2012

March 28, 2012 | Derek-Jones

The R Foundation has been accepted for Google’s summer of code and I thought I would suggest a few ideas for projects. My interests are in optimization and source code analysis, so obviously the suggestions involve these topics. There are an infinite number of possible optimizations that can be ... [Read more...]

AQP Kick-Start

March 27, 2012 | dylan

A fun kick-starter for anyone interested in working with soil profile data in R, via AQP. See in-line comments for details. Up next, profile slicing and aggregation. read more [Read more...]
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