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In the second edition of your book, on page 20 in the subsection 2.1.1, there is a typo in the following sentence:

"We suggest you follows the steps in section A.1 of appendix A to install R, packages, tools, and the book examples."

"follow" instead of "follows"

In the example "Taking care when using data.table" in the subsection "5.1.1 Subsetting rows and columns" there is a comment regarding the code that says "Notice that this returns the column x much like d$x would."

Maybe you wanted it that way, but eventually you meant "[...] much like df$x would.".

In section "6.2.5 Evaluating probability models", I believe there is a slight mistake in Figure 6.19 on page 193.

The second line in the Figure for "match (not spam)" has a probability of "0.02".

The contribution then is depicted as "contribution : (1-0) * log(1-0.98) = -0.02".

I believe, it should actually say "contribution : (1-0) * log(1-0.02) = -0.02".

Somehow all footnotes in chapter 7 "Linear and logistic regression" are numbered as "1".

In the subsection "8.3.1 The variable score frame" on page 285, there is most likely a typo:

"Var116_isBAD", which probably should be "Var126_isBAD".