Errors in running code in vignettes:
when running code in 'Ch_analysing_longitudinal_dataI.Rnw'
  ...
+     if (book) {
+         return(paste("Chapter~\\\\ref{", ch[1], "}",  .... [TRUNCATED] 

> library("Matrix")

> library("lme4")

  When sourcing 'Ch_analysing_longitudinal_dataI.R':
Error: there is no package called 'lme4'
Execution halted
when running code in 'Ch_analysing_longitudinal_dataII.Rnw'
  ...
> ch <- function(x, book = TRUE) {
+     ch <- refs[which(refs[, 1] == x), ]
+     if (book) {
+         return(paste("Chapter~\\\\ref{", ch[1], "}",  .... [TRUNCATED] 

> library("gee")

  When sourcing 'Ch_analysing_longitudinal_dataII.R':
Error: there is no package called 'gee'
Execution halted
when running code in 'Ch_cluster_analysis.Rnw'
  ...
> ch <- function(x, book = TRUE) {
+     ch <- refs[which(refs[, 1] == x), ]
+     if (book) {
+         return(paste("Chapter~\\\\ref{", ch[1], "}",  .... [TRUNCATED] 

> library("mclust")

  When sourcing 'Ch_cluster_analysis.R':
Error: there is no package called 'mclust'
Execution halted
when running code in 'Ch_conditional_inference.Rnw'
  ...
> nobs <- table(roomwidth$unit)

> ties <- tapply(roomwidth$width, roomwidth$unit, function(x) length(x) - 
+     length(unique(x)))

> library("coin")

  When sourcing 'Ch_conditional_inference.R':
Error: there is no package called 'coin'
Execution halted
when running code in 'Ch_density_estimation.Rnw'
  ...

> x <- library("KernSmooth")
KernSmooth 2.23 loaded
Copyright M. P. Wand 1997-2009

> x <- library("flexmix")

  When sourcing 'Ch_density_estimation.R':
Error: there is no package called 'flexmix'
Execution halted
when running code in 'Ch_meta_analysis.Rnw'
  ...
> ch <- function(x, book = TRUE) {
+     ch <- refs[which(refs[, 1] == x), ]
+     if (book) {
+         return(paste("Chapter~\\\\ref{", ch[1], "}",  .... [TRUNCATED] 

> library("rmeta")

  When sourcing 'Ch_meta_analysis.R':
Error: there is no package called 'rmeta'
Execution halted
when running code in 'Ch_multidimensional_scaling.Rnw'
  ...
> ch <- function(x, book = TRUE) {
+     ch <- refs[which(refs[, 1] == x), ]
+     if (book) {
+         return(paste("Chapter~\\\\ref{", ch[1], "}",  .... [TRUNCATED] 

> x <- library("ape")

  When sourcing 'Ch_multidimensional_scaling.R':
Error: there is no package called 'ape'
Execution halted
when running code in 'Ch_recursive_partitioning.Rnw'
  ...
> ch <- function(x, book = TRUE) {
+     ch <- refs[which(refs[, 1] == x), ]
+     if (book) {
+         return(paste("Chapter~\\\\ref{", ch[1], "}",  .... [TRUNCATED] 

> library("vcd")

  When sourcing 'Ch_recursive_partitioning.R':
Error: there is no package called 'vcd'
Execution halted
when running code in 'Ch_simple_inference.Rnw'
  ...
> ch <- function(x, book = TRUE) {
+     ch <- refs[which(refs[, 1] == x), ]
+     if (book) {
+         return(paste("Chapter~\\\\ref{", ch[1], "}",  .... [TRUNCATED] 

> library("vcd")

  When sourcing 'Ch_simple_inference.R':
Error: there is no package called 'vcd'
Execution halted
when running code in 'Ch_survival_analysis.Rnw'
  ...
+     if (book) {
+         return(paste("Chapter~\\\\ref{", ch[1], "}",  .... [TRUNCATED] 

> x <- library("survival")

> x <- library("coin")

  When sourcing 'Ch_survival_analysis.R':
Error: there is no package called 'coin'
Execution halted

  'Ch_analysing_longitudinal_dataI.Rnw' using 'UTF-8'... failed
  'Ch_analysing_longitudinal_dataII.Rnw' using 'UTF-8'... failed
  'Ch_analysis_of_variance.Rnw' using 'UTF-8'... OK
  'Ch_cluster_analysis.Rnw' using 'UTF-8'... failed
  'Ch_conditional_inference.Rnw' using 'UTF-8'... failed
  'Ch_density_estimation.Rnw' using 'UTF-8'... failed
  'Ch_errata.Rnw' using 'UTF-8'... OK
  'Ch_introduction_to_R.Rnw' using 'UTF-8'... OK
  'Ch_logistic_regression_glm.Rnw' using 'UTF-8'... OK
  'Ch_meta_analysis.Rnw' using 'UTF-8'... failed
  'Ch_multidimensional_scaling.Rnw' using 'UTF-8'... failed
  'Ch_multiple_linear_regression.Rnw' using 'UTF-8'... OK
  'Ch_principal_components_analysis.Rnw' using 'UTF-8'... OK
  'Ch_recursive_partitioning.Rnw' using 'UTF-8'... failed
  'Ch_simple_inference.Rnw' using 'UTF-8'... failed
  'Ch_survival_analysis.Rnw' using 'UTF-8'... failed
  'preface.Rnw' using 'UTF-8'... OK