`Modern Applied Statistics with S-Plus' by W.N. Venables & B.D. Ripley
======================================================================
Errata for the second and third printings. Those marked (2) are
corrected in the third printing.
p. 59 l.-10 median |x - \mu| (| | not [ ]).
p. 86 l.3 and && only evaluates ...
p. 88 l.14 For(i = 1:250, res[i] <- myfun(sample(x, replace=T)) )
(Replace ; by ,)
p.104 l.7 tempfile creates a _name_ for a file, not the file itself.
p.122 Weibull has a scale parameter as well as shape in 3.2 and later.
p.125 The period evaluates to 4.6e18, not 6.6e14
p.126 l.11 the >skewness<.
p.160 lines -11,-10 should be
dist climb
4.9 0.0084718
p.164 l.17 list(N == "0", N == "1") might be clearer. (The
levels of N are "0" and "1" in the file npk.dat in the
scripts directory.)
p.180 [A warning, not an erratum.] Figure 6.8 was produced
in S-Plus 3.1. Later releases produce a similar but not
identical plot.
p.213 l.6 [For clarification.]
>of the median< to regression is:
p.227 l.20 derivatives with beta subscripted as 1,2 should be 0,1
p.234 vcov.glm is defined on page 188, so vcov.lm is not actually used.
It should be
vcov.lm <- function(obj)
{
so <- summary(obj, corr=F)
so$sigma^2 * so$cov.unscaled
}
(This has been corrected in the software on the third printing.)
p.262 (10.8) The final sum is over i -> j and w_{ih} should be w_{ij}.
p.263 l.24,25 x is the independent variables, y the dependent ones.
(2) p.268 eq (11.1) Interchange \delta_i = 0 and \delta_i = 1.
p.271 third displayed equation. - is needed before H(t).
p.274 Table 11.1. A clarification: The last column refers to the
quoted model with linear wbc not log(wbc).
p.275 l.8 change - to +.
p.278 l.-6 10 percentile for >log< T of
(2) p.279 l.-8 A clearer version is:
it is common to employ the Breslow approximation in which each
death is always considered to precede all other events at that time.
p.282 l.2 beta-hat = (-1.07, 0.37)^T. The values quoted were computed
with the Breslow approximation.
p.288 l.1 `interval-censored' means different things to different
people: here it means both left- and right-censored.
p.289 l.16 Replace 1/1/71 by 1 Oct 1971.
p.289 We should have had age=c(50,50) - 48, but in fact survfit
would in error here even with the correct age.
p.303 l.13 (n-1) not (n-p), replace 1^T X 1 by 1 1^T X twice.
p.317 l.11 The first term of (13.3) is the >squared< Mahalanobis ...
p.321 There is a misprint in the table of Fisher's data:
(medium, black) had a count of 26 not 25. The corrected
results are
First canonical correlation: 0.44637
Row scores:
blue light medium dark
-0.89679 -0.98732 0.075306 1.5743
Column scores:
fair red medium dark black
-1.2187 -0.52258 -0.094147 1.3189 2.4518
p.332 Caption: The numbers m/n denote the proportion of training
cases reaching that node that are classified incorrectly by
the label in the node
p.349 rts(scan(n=48))
p.353 first two displays. Interchange max and min.
p.356 last line of last display (bias ...). Delete 2pi/n.
p.359 l.2 sqrt(m) + 0.11 + 0.12/sqrt(m).
p.361 (14.5) and (14.6). Replace upper limit q by p in (14.5) and
first sum of (14.6).
p.362 l.2 2^q, not 2^p
p.367 The coh component is the _squared_ coherency, so these plots
need some adjustment (and people need to use more helpful names).
p.391 The 3D spherical covariance should have r/d rather than d/r, twice.
Software
--------
Function qda.q. Add the 2* at
ldet[i] <- 2*sum(log(abs(diag(qx))))
Only very rarely will this have a visible effect.
Typos
-----
p.23 line 15. ... specified, >in< which ...
p.23 line -6 delete one of `Lo Lo'
p.29 line -8 bold x
p.39 line 6. Character vectors may >be< created ...
(2) p. 59 exer 2.2 birthwt not birthwts
p.68 line -11 allow>s<
p.139 line 6. First term should have expected value
p.139 line 17. can evaluate via the (omit in)
p.185 line 7. and the canonical link >that< ...
p.189 line -15. on the toxicity >to< the tobacco budworm Heliothis
virescens >of< doses of the
p.197 line 4 For large models >it< is often helpful to
p.197 line -9 proportion, not proportions
p.209 line -8 with one value >that< appears to be out by
p.220 line -10 [For clarification.] Change the second occurrence of
`outliers' to `outlying'.
p.227 line 17. ... To >do< so, we write ...
p.229 line -17 ... to supply, though, ...
p.250 line 13 ... freedom to >be< specified ...
p.255 lines -4,-3 The suffix on alpha should be j not k, twice.
p.263 line 13 to help >the< optimization process.
p.274 Table 11.1 line 4 -0.23 should be -0.20.
(2) p.277 line 19 Moving on >to< the gehan dataset.
(2) p.279 line -12 ... corrrect treatment of ties >causes< ...
p.281, 403 Nagelkerke
p.316 line 5 proportions, not proportion.
p.318 line 6 Studdert-Kennedy is misspelt.
p.333 line 10 if >we< disallow
p.335 line -13 ... benchmark >of a< mix ...
p.345 line 4 ... but >not in< the ...
p.345 line 6 this, zero >probabilities< ...
p.372 l. -1 missing X after \Delta \Delta_{12}
p.373 l. 3 missing X after \Delta \Delta_{12}
p.374 l.-5 missing ( after I_ii
p.381 line -1 phenomenon
p.386 line 8 minimizing
p.398 Box & Cox >An< analysis ...
p.401 H\"ardle. Springer-Verlag.
p.401 Hoaglin et al (1985) ... Tables, Trends ...
p.401 Hoaglin et al (1991) delete `the' from title.
p.432 line -13 ... This will be >a< vector ...
p.451 for expand.grid read 69, 164, 197, 220, 235, 387, 418