Posts Tagged ‘ Exploring Data ’

Measuring association using odds ratios

Measuring association using odds ratios

In my last two posts, I have used the UCI mushroom dataset to illustrate two things.  The first was the use of interestingness measures to characterize categorical variables, and the second was the use of binary confidence intervals...

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Screening for predictive characteristics … and a mea culpa

Screening for predictive characteristics … and a mea culpa

In my last post, I considered the UCI mushroom dataset and characterized the variables included there using four different interestingness measures.  When I began drafting this post, my intention was to consider the question of how the different m...

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Interestingness Measures

Interestingness Measures

Probably because I first encountered them somewhat late in my professional life, I am fascinated by categorical data types.  Without question, my favorite book on the subject is Alan Agresti’s Categorical Data Analysis (Wiley Series in Probabili...

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Boxplots and Beyond – Part II: Asymmetry

Boxplots and Beyond – Part II: Asymmetry

In my last post, I discussed boxplots in their simplest forms, illustrating some of the useful options available with the boxplot command in the open-source statistical software package R.  As I noted in that post, the basic boxplot is both useful...

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