Monthly Archives: July 2009

Simple Data Visualization

July 16, 2009
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Simple Data Visualization

OK, so, I know I already raved about one Hadley Wickham project and how it has changed my life last week. But what can I say, the man is a genius. And if you are using R (and let’s face it, you should be) and you want simple sexy graphs made quick, the man has

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Influence.ME: Simple Analysis

July 16, 2009
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Influence.ME: Simple Analysis

With the introduction of our new package for influential data influence.ME, I’m currently writing a manual for the package. This manual will address topics for both the experienced, and the inexperienced users. I will also present much of the content ...

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Missing data, logistic regression, and a predicted values plot (or two)

July 15, 2009
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miss attach miss result1 summary(result1) Call: glm(formula = a ~ b, family = binomial(logit)) Deviance Residuals: Min 1Q Median 3Q Max -1.8864 -1.2036 0.7397 0.9425 1.4385 Coefficients: ...

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Missing data, logistic regression, and a predicted values plot (or two)

July 15, 2009
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miss attach miss result1 summary(result1) Call: glm(formula = a ~ b, family = binomial(logit)) Deviance Residuals: Min 1Q Median 3Q Max -1.8864 -1.2036 0.7397 0.9425 1.4385 Coefficients: ...

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Job grade plot

July 15, 2009
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Job grade plot

This plot:was created using the following R code:plot (q9e~q8, type = "n",xlim = c(1,13), ylim = c(1,13),cex.lab=1.25,cex.axis=0.75, col.lab = "#333333", xlab = "Obama job grade",ylab = "Congressional job grade", xaxt ="n", yaxt="n",main="Obama and Co...

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Job grade plot

July 15, 2009
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Job grade plot

This plot:was created using the following R code:plot (q9e~q8, type = "n",xlim = c(1,13), ylim = c(1,13),cex.lab=1.25,cex.axis=0.75, col.lab = "#333333", xlab = "Obama job grade",ylab = "Congressional job grade", xaxt ="n", yaxt="n",main="Obama and Co...

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Example 7.5: Replicating a prettier jittered scatterplot

July 15, 2009
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Example 7.5: Replicating a prettier jittered scatterplot

The scatterplot in section 7.4 is a plot we could use repeatedly. We demonstrate how to create a macro (SAS, section A.8) and a function (R, section B.5) to do it more easily.SAS%macro logiplot(x=x, y=y, data=, jitterwidth=.05, smooth=50);data lp1;set...

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Building R packages for Windows

July 13, 2009
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Building R packages for Windows

1. Installing the required tools To build an R package in Windows, you will need to install some additional software tools. These are summarized at http://www.murdoch-sutherland.com/Rtools 1.1 Essential: Rtools This is a collection of unix-like tools that can be run from the DOS command prompt. It also contains the MinGW compilers that are used for

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Building R packages for Windows

July 13, 2009
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1. Installing the required tools To build an R package in Windows, you will need to install some additional software tools. These are summarized at http://www.murdoch-sutherland.com/Rtools 1.1 Essential: Rtools This is a collection of unix-like tools...

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A recommended book

July 13, 2009
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A recommended book

I've been getting a lot of help from this book:While written for S-Plus, nearly everything in it is applicable with R.

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