Errata

Introduction to Machine Learning with R

Errata for Introduction to Machine Learning with R

Submit your own errata for this product.

The errata list is a list of errors and their corrections that were found after the product was released.

The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.

Color Key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update

Version Location Description Submitted by Date submitted
Online
Figure 2-11, 2-12, 2-13

Figures 2-11, 2-12 and 2-13 are identical and looks like only applicable to generating random dataset for Unsupervised Clustering Methods example, i.e. Figure 2-12

 Anonymous  Oct 19, 2019 
Online
Chapter 3. Sampling Statistics and Model Training in R, Training and Test Sets: Regression Modeling, RMSE on quadratic degree function

Within the code chunks for computing RMSE, RMSE.df and RMSE.quad.df are identical however the following text describes decreased RMSE for quadratic function

 Anonymous  Oct 20, 2019 
ePub Page 1
?(lm) in 1. What Is a Model? (reading time: 32 mins) from Introduction to Machine Learning with R

If you make this call in R, you will get the help documentation for parentheses, since that is the first character after the question mark. If you want to see the help documentation for "lm", the correct format is ?lm

As an aside, since this is the ePub version displayed in your reader, there is not way to elicit the Page number of the error, or the location on the page. The Format pulldown should be first with context sensitive boxes for the location based on the format..

Note from the Author or Editor:
Thanks for the errata submission! This must've been an edit that was put in erroneously. The print page in which this occurs is page 7 and should read "?lm" with no parenthesis.

 Anonymous  Oct 01, 2019 
5
Bottom of the page

Equation should read Fuel Efficiency = -5.344 × Vehicle Weight + 37.285

The negative number before the slope of the line is missing.

 Anonymous  Nov 03, 2019 
Printed Page 22
First code block

In the first code block, the intercept is incorrectly entered as +25.599, when it should be +29.599 (which is also why there's such a large difference between the MPG in the first and second code blocks.

 Emryn  Apr 09, 2022 
Printed Page 25
1st paragraph

The paragraph states that a car with automatic transmission has a value of 1 and manual transmission a value of 0.
In contrast, on page 4, the text (under am) states that automatic transmission is indicated by 0 and manual transmission by 1 (this is the correct notation, according to R help function ?mtcars )

 Anonymous  Jan 29, 2021 
Printed Page 43
Top

Fig 2-11, 2-12 and 2-13 are identical, the problem arises with 2-13, where the text is not comprehensible anymore without an updated figure .

Nicole  Sep 18, 2021 
PDF Page 58
2nd console output

the code is different than from the previous example, but the results are the same. The following paragraphs states how the results should differ, when in fact both answers are identical.

Christophe Benjamin  Oct 27, 2020