Blog Archives

Iraq-Wikileaks Analysis with R

June 14, 2016
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Iraq-Wikileaks Analysis with R

In a place of extreme violence and devoid of order, the practical subsumes the principle. I drifted down the path of bribery and corruption endemic to the streets of Baghdad”.Jason Whiteley, Father of Money: Buying Peace in BaghdadAs I mentioned in a previous post, I wanted to explore the Wikileaks data of the US...

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Battle Maps Using R and Leaflet

May 6, 2016
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Battle Maps Using R and Leaflet

“Here are those damned black hat fellows again.”Attributed to men of the 26th North Carolina, Pettigrew's Brigade at the Battle of Gettysburg in describing the "Iron Brigade".A while back I created a post about plotting Russian airstrikes in Syria using the ggmap package. Of note was the commentary and method of taking that data...

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Simpson’s Paradox

January 1, 2016
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“Statistics are used much like a drunk uses a lamppost: for support, not illumination.”A.E. Housman (commonly attributed to Andrew Lang)Recently at work I stumbled into a classic example of Simpson's Paradox (Yule-Simpson Effect). Many people are not familiar with this phenomena, so I thought I would provide a brief example to help shed some light on it. If you...

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Plotting Russian AiRstRikes in SyRia

November 7, 2015
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Plotting Russian AiRstRikes in SyRia

"Who do we think will rise if Assad falls?""Do we have a “government in a box” that we think we can fly to Damascus and put into power if the Syrian army collapses, the regime falls and ISIS approaches the capital?""Have we forgotten the lesson of “Animal Farm”? When the animals revolt and take over the farm, the pigs...

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Machine Learning with R

October 30, 2015
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Machine Learning with R

My effort on machine learning with R is now available.

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NFL Cluster Analysis…Part 2

January 12, 2015
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NFL Cluster Analysis…Part 2

Another post on Cluster Analysis and the NFL, this time on the Perceivant.com blog.http://perceivant.com/nfl-ranking-cluster-analysis/

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Cluster Analysis of the NFL’s Top Wide Receivers

December 29, 2014
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Cluster Analysis of the NFL’s Top Wide Receivers

“The time has come to get deeply into football. It is the only thing we have left that ain't fixed.”Hunter S. Thompson, Hey Rube Column, November 9, 2004I have to confess that I haven’t been following the NFL this year as much as planned or hoped.  On only 3 or 4 occasions this year have I been able to...

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Causality in Time Series – A look at 2 R packages (CausalImpact and Changepoint)

November 15, 2014
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My first blog post on Perceivant.comhttp://perceivant.com/causality-time-series-determining-impact-marketing-interventions/

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Results of the Readers’ Survey

August 5, 2014
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Results of the Readers’ Survey

 First of all, let me say “Thank You” to all of the 357 people who completed the survey. I was hoping for 100, so needless to say the response blew away my expectations. This endeavor seems like a worthwhile effort to do once a year. Next year I will refine the...

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R Blog Readers Survey

June 28, 2014
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I've almost achieved my goal of a minimum of 100 quality responses.  I will keep the survey open for a couple more days, so if you haven't responded, please feel free to have a crack at it.Regards,Coryhttps://www.surveymonkey.com/s/7DY8DYH

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