* Chapter 3: Descriptive Statistics using Stata .

* Import data .
insheet using "C:\temp\rat_pup.dat", tab clear

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* Descriptive Summary #1 .
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by treatment, sort : tabstat weight, statistics( count mean sd min max ) by(sex) columns(variables)

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* Generate Figure 3.1 .
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graph box weight, medtype(line) over(sex) over(treatment)

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* Generate Plots for Figure 3.2.
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gsort +litsize +litter

egen ranklit = group(litsize litter)

graph box weight, medtype(line) over(ranklit, label(labsize(tiny) labgap(*2))) caption(New Litter ID (Ordered by Size), size(small)) by(treatment sex, rows(3))