* using log directory ‘/data/gannet/ripley/R/packages/tests-Suggests/kpcalg.Rcheck’
* using R Under development (unstable) (2024-04-19 r86451)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    gcc-13 (GCC) 13.2.0
    GNU Fortran (GCC) 13.2.0
* running under: Fedora Linux 36 (Workstation Edition)
* using session charset: UTF-8
* using option ‘--no-stop-on-test-error’
* checking for file ‘kpcalg/DESCRIPTION’ ... OK
* this is package ‘kpcalg’ version ‘1.0.1’
* checking package namespace information ... OK
* checking package dependencies ... OK
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for executable files ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking for sufficient/correct file permissions ... OK
* checking whether package ‘kpcalg’ can be installed ... [25s/31s] OK
* checking package directory ... OK
* checking ‘build’ directory ... OK
* checking DESCRIPTION meta-information ... OK
* checking top-level files ... OK
* checking for left-over files ... OK
* checking index information ... OK
* checking package subdirectories ... OK
* checking code files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... OK
* checking whether the package can be loaded with stated dependencies ... OK
* checking whether the package can be unloaded cleanly ... OK
* checking whether the namespace can be loaded with stated dependencies ... OK
* checking whether the namespace can be unloaded cleanly ... OK
* checking loading without being on the library search path ... OK
* checking use of S3 registration ... OK
* checking dependencies in R code ... OK
* checking S3 generic/method consistency ... OK
* checking replacement functions ... OK
* checking foreign function calls ... OK
* checking R code for possible problems ... [37s/48s] OK
* checking Rd files ... NOTE
checkRd: (-1) hsic.perm.Rd:36: Lost braces; missing escapes or markup?
    36 | Let x and y be two samples of length n. Gram matrices K and L are defined as: \eqn{K_{i,j} = \exp\frac{(x_i-x_j)^2}{\sigma^2}}{K_{i,j} =exp((x_i-x_j)^2/sig^2)} and \eqn{L_{i,j} = \exp\frac{(y_i-y_j)^2}{\sigma^2}}{L_{i,j} =exp((y_i-y_j)^2/sig^2)}. \eqn{H_{i,j} = \delta_{i,j} - \frac{1}{n}}{H_{i,j} = \delta_{i,j} - 1/n}. Let \eqn{A=HKH} and \eqn{B=HLH}, then \eqn{HSIC(x,y)=\frac{1}{n^2}Tr(AB)}{HSIC(x,y)=Tr(AB)/n^2}. Permutation test permutes y p times to get \eqn{y_{(p)}} and calculates HSIC(x,y_{(p)}). \eqn{pval = \frac{1(HSIC(x,y)>HSIC(x,y_{(p)}))}{p}}{(HSIC(x,y)>HSIC(x,y_{(p)}))/p}.
       |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ^
* checking Rd metadata ... OK
* checking Rd line widths ... OK
* checking Rd cross-references ... OK
* checking for missing documentation entries ... OK
* checking for code/documentation mismatches ... OK
* checking Rd \usage sections ... OK
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking LazyData ... NOTE
  'LazyData' is specified without a 'data' directory
* checking sizes of PDF files under ‘inst/doc’ ... OK
* checking installed files from ‘inst/doc’ ... OK
* checking files in ‘vignettes’ ... OK
* checking examples ... [26s/35s] OK
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes ... OK
* checking re-building of vignette outputs ... [11s/14s] ERROR
Error(s) in re-building vignettes:
--- re-building ‘kpcalg_tutorial.Rnw’ using knitr

Quitting from lines  at lines 61-65 [unnamed-chunk-2] (kpcalg_tutorial.Rnw)
Error: processing vignette 'kpcalg_tutorial.Rnw' failed with diagnostics:
package required but not installed: 'Rgraphviz'
--- failed re-building ‘kpcalg_tutorial.Rnw’

SUMMARY: processing the following file failed:
  ‘kpcalg_tutorial.Rnw’

Error: Vignette re-building failed.
Execution halted

* checking PDF version of manual ... [8s/12s] OK
* checking HTML version of manual ... OK
* checking for non-standard things in the check directory ... OK
* checking for detritus in the temp directory ... OK
* DONE

Status: 1 ERROR, 2 NOTEs
See
  ‘/data/gannet/ripley/R/packages/tests-Suggests/kpcalg.Rcheck/00check.log’
for details.

Command exited with non-zero status 1
Time 5:06.79, 217.71 + 21.46