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YaRrr! The Pirate's Guide to R

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Corrected the formula for bmi in the second demo with with()

Per Álvaro Fernández , https://dl.dropboxusercontent.com/u/7618380/datasets/caffeinestudy.txt is broken. Test Your Might Chapter 8, where I have to charge with read.table data from your dropbox, and I can't get the data. ¿Are...

Hello, I just started this book. Installing the yarrr packages with `install.packages('yarrr')` goes somewhere but I seem to have this two warning messages at the end: ``` Warning messages: 1:...

The figure numbers seem like they are aligned to section/chapter numbers, apart from chapter 2, which continue on as 1.x. From chapter 3 onwards these are 3.x and 4.x etc.

As before, just some typos.

The intro page to chapter 7 asks " # What percent of boats were older than 100 years old?" and answers "mean(boat.ages < 100) ## [1] 0.6" really it should...

`Quitting from lines 631-635 [unnamed-chunk-37] (YaRrr.Rmd) Error in `aggregate.formula()`: ! argument 'x' is missing -- it has been renamed from 'formula' Backtrace: 1. stats::aggregate(formula = age ~ sex, data =...

aggregate function does not need "formula =" : aggregate(age ~ sex, data = pirates, FUN = mean, na.rm=TRUE) Error in aggregate.formula(formula = age ~ sex, data = pirates, FUN =...