Data Science for Business

Errata for Data Science for Business

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. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Date Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.

Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question Note Update



Version Location Description Submitted By Date Submitted Date Corrected
PDF, ePub
Page Praise p.1
3rd quote

"principals" should be "principles"

Tom Fawcett
O'Reilly Author 
Aug 09, 2013  Dec 19, 2013
Other Digital Version
Table 10-4 + index

"Dizzie" Gillespie should be Dizzy.

Note from the Author or Editor:
Fixed.

Steven Maude  Jan 05, 2014 
, Printed, PDF, ePub, Mobi, Safari Books Online, Other Digital Version
Page 71
Code example for classifiaction by IF-THEN rules

The last rule should say: IF (Balance >= 50k) and (Age >= 45) THEN Class = No Write-Off As it stands, the same condition repeats in line 2 and 3, which is incorrect.

Gregor Hohpe  Sep 20, 2013  Dec 19, 2013
Printed
Page 84-86
Figure and equations

pp. 84, Figure 4-3: Decision Boundary should be "Age = Balance x -1.5 + 60". pp.85, Equation 4-1, it should be "1.0 x Age + 1.5 x Balance - 60" for both conditions. pp. 86, the equation should be "f(x) = 60 - 1.0 x Age - 1.5 x Balance".

Note from the Author or Editor:
Errors 1 and 3 had already been fixed in version 2, but we hadn't caught the second one. Fixed for next version.

Craig  Feb 08, 2014 
, Printed, PDF, ePub, Mobi, Safari Books Online, Other Digital Version
Page 107
3rd paragraph

"paramenters" should be "parameters"

Note from the Author or Editor:
FIxed.

HB2012  Sep 19, 2013  Dec 19, 2013
Other Digital Version
119
End of penultimate line in page

Found in Google Books version: "...the two separating lines are so similiar..." "Similiar" should be similar.

Note from the Author or Editor:
Fixed.

Steven Maude  Dec 29, 2013 
, Printed, PDF, ePub, Mobi, Safari Books Online, Other Digital Version
Page 132
Under Figure 5-11 description

"perforance" should probably be "performance"

Note from the Author or Editor:
Fixed. Thanks!

Alfonso MHC  Sep 26, 2013  Dec 19, 2013
Printed
Page 181
Explanatory text of Figure 6-14

The last sentence says: "So, the leftmost leaf corresponds to the segment of the population with around body and sherry nose, and the whiskeys in this segment are mostly from cluster J." Instead, the sentence should apply to the RIGHTMOST leaf, as the tree is displayed in the figure, I believe.

Note from the Author or Editor:
Fixed.

Roland Acra  Oct 04, 2013  Dec 19, 2013
Printed
Page 182
End of first paragraph on the page

In the second to last sentence of the top paragraph on the page, the use of the words "intergroup" and "intragroup" has been inverted. The text says: "To put it another way: characteristic descriptions concentrate on intergroup commonalities, whereas differential descriptions concentrate on intragroup differences." It should be the opposite as the prefix "intra" refers to someting "within" a set, whereas the prefix "inter" refers to something "among" sets. (For instance, international relations are relations among nations, not within each nation...)

Note from the Author or Editor:
Fixed.

Roland Acra  Oct 04, 2013  Dec 19, 2013
, Printed, PDF, ePub, Mobi, Safari Books Online, Other Digital Version
Page 191
tables 7.2 and 7.3

Given that model A correctly identifies 30% of the negative examples and model B correctly identifies 30% of the positive examples, they achieve 65% accuracy not 80%. Indeed, the two tables should be: (7.2) [500 350] (7.3) [150 0] [ 0 150] [350 500]

Note from the Author or Editor:
Fixed.

Jean-Pierre Haeberly  Sep 02, 2013  Dec 19, 2013
PDF, ePub
Page 204
sidebar top of page

The sidebar has the text: Sensitivity = TN / (TN + FP) = True negative rate = 1 - False positive rate Specificity = TP / (TP + FN) = True positive rate Sensitivity and specificity here are reversed. Lots of potential references, but Wikipedia has it right: http://en.wikipedia.org/wiki/Sensitivity_and_specificity

Note from the Author or Editor:
Fixed.

Keith Woeltje  Dec 23, 2013 
PDF, ePub
Page 242
middle of page; 3rd para

After "Our independence assumption allows us to rewrite this as:" we have two equations for p(E). Second equation is just a reformat of the first, and should be removed.

Tom Fawcett
O'Reilly Author 
Aug 09, 2013  Dec 19, 2013
Other Digital Version
285
3rd paragraph

"Furthmore" should probably be Furthermore.

Note from the Author or Editor:
Fixed.

Steven Maude  Jan 06, 2014 
Other Digital Version
302
Figure 12-4 caption

Caption states "along two these two dimensions".

Note from the Author or Editor:
Fixed.

Steven Maude  Jan 06, 2014 
Other Digital Version
318
2nd paragraph, 6th line

"stragegy" should be strategy.

Note from the Author or Editor:
Fixed.

Steven Maude  Jan 06, 2014