# Monthly Archives: June 2009

## PDQ 5.0 Test Suite or … How I Spent My Weekend

June 29, 2009
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I was planning to blog about the amazing time I had at Velocity 2009 last week, when this landed in my mailbox (edited for space and privacy): Subject: Seeking help with PDQ-R ...Date: Thu, 25 Jun 2009 15:51:21 -0500My name is James and I've be...

## August Guerrilla Class: Using R for Performance Analysis

June 29, 2009
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Registrations are still open for the Guerrilla Data Analysis Techniques (GDAT) class being held August 10-14, 2009. The focus will be on using R and the new release of PDQ-R for performance analysis and capacity planning.All Guerrilla classes are hel...

## Time series data

June 28, 2009
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gdp attach(gdp)as.Date(date)plot(gdp~date, data=gdp,pch=16,xlab="",ylab="GDP (2000 dollars)")

## Time series data

June 28, 2009
By

gdp attach(gdp)as.Date(date)plot(gdp~date, data=gdp,pch=16,xlab="",ylab="GDP (2000 dollars)")

## RSI(2) Evaluation

June 28, 2009
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Despite my best efforts, it's been a month since the last post of this series. The first post replicated this simple RSI(2) strategy from the MarketSci Blog using R. The second post showed how to replicate the strategy that scales in/out of RSI(2). ...

## Conservatism of Congressional delegation and %Bush vote

June 27, 2009
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Busy day today, so I'll just post this:plot(bush04 ~ cons_hr, type = "n",xlab="Mean ACU rating",ylab="2004 Bush vote",xlim=c(0,100),ylim=c(0,100),cex.lab=1.25,cex.axis=0.75,col.axis = "#777777",col.lab = "#777777")text(y=bush04,x=cons_hr, labels=statei...

## Conservatism of Congressional delegation and %Bush vote

June 27, 2009
By

Busy day today, so I'll just post this:plot(bush04 ~ cons_hr, type = "n",xlab="Mean ACU rating",ylab="2004 Bush vote",xlim=c(0,100),ylim=c(0,100),cex.lab=1.25,cex.axis=0.75,col.axis = "#777777",col.lab = "#777777")text(y=bush04,x=cons_hr, labels=statei...

## R 2.9.1, CRANberries outage, and missing Java support

June 27, 2009
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Just a short note that version 2.9.1 of R was released yesterday. And a corresponding Debian release went out as usual on the same day. One sour note: as the Java toolchain is currently broken, I had to disable compile-time support for Java. Just run R...

## R 2.9.1, CRANberries outage, and missing Java support

June 27, 2009
By

Just a short note that version 2.9.1 of R was released yesterday. And a corresponding Debian release went out as usual on the same day. One sour note: as the Java toolchain is currently broken, I had to disable compile-time support for Java. Just run R CMD javareconf once installed if you need it. Speaking of broken, I had...

## Multiple Imputation with Diagnostics (mi) in R: Opening Windows into the Black Box

June 26, 2009
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Our article (by Yu-Sung, Jennifer, Masanao, and myself, and based also on work with Kobi, Grazia, and Peter Messeri) will be appearing in the Journal of Statistical Software, in a special issue on missing-data imputation. Here's the abstract: ...

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