* using log directory ‘/srv/hornik/tmp/CRAN/cmahalanobis.Rcheck’
* using R Under development (unstable) (2024-02-15 r85925)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    Debian clang version 17.0.6 (5)
    Debian flang-new version 17.0.6 (5)
* running under: Debian GNU/Linux trixie/sid
* using session charset: UTF-8
* checking for file ‘cmahalanobis/DESCRIPTION’ ... OK
* checking extension type ... Package
* this is package ‘cmahalanobis’ version ‘0.1.0’
* package encoding: UTF-8
* checking CRAN incoming feasibility ... [2s/2s] NOTE
Maintainer: ‘Flavio Gioia <flaviogioia.fg@gmail.com>’

New submission

Possibly misspelled words in DESCRIPTION:
  cmahalanobis (8:48)

Unknown, possibly misspelled, fields in DESCRIPTION:
  ‘Import’

The Title field should be in title case. Current version is:
‘It calculates Mahalanobis distance for a given list where there are factors’
In title case that is:
‘It Calculates Mahalanobis Distance for a Given List where There are Factors’

The Description field should not start with the package name,
  'This package' or similar.
* 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 serialization versions ... OK
* checking whether package ‘cmahalanobis’ can be installed ... [1s/1s] OK
* checking package directory ... OK
* checking for future file timestamps ... 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 R files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... [0s/0s] OK
* checking whether the package can be loaded with stated dependencies ... [0s/0s] OK
* checking whether the package can be unloaded cleanly ... [0s/0s] OK
* checking whether the namespace can be loaded with stated dependencies ... [0s/0s] OK
* checking whether the namespace can be unloaded cleanly ... [0s/0s] OK
* checking loading without being on the library search path ... [0s/0s] 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 ... [2s/2s] NOTE
cmahalanobis: no visible global function definition for ‘cov’
Undefined global functions or variables:
  cov
Consider adding
  importFrom("stats", "cov")
to your NAMESPACE file.
* checking Rd files ... [0s/0s] OK
* 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 examples ... [0s/0s] ERROR
Running examples in ‘cmahalanobis-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: cmahalanobis
> ### Title: Calculate the Mahalanobis distance for each species This
> ###   function takes a list of data frames as input, where each data frame
> ###   contains the observations of a species, and returns a matrix with the
> ###   Mahalanobis distances between each pair of species.
> ### Aliases: cmahalanobis
> 
> ### ** Examples
> 
> # Example with the iris dataset
> library(stats)
> # Split the data into 3 parts for each species
> setosa <- subset(iris, Species == "setosa")
> setosa <- setosa[,-5]
> versicolor <- subset(iris, Species == "versicolor")
> versicolor <- versicolor[,-5]
> virginica <- subset(iris, Species == "virginica")
> virginica <- virginica[,-5]
> 
> # Create a list with the three groups of flowers
> groups <- list(setosa, versicolor, virginica)
> 
> # Calculate the Mahalanobis distance with the cmahalanobis function
> cmahalanobis(groups)
Warning in sweep(x, 2L, center) :
  STATS does not recycle exactly across MARGIN
Error in x %*% cov : non-conformable arguments
Calls: cmahalanobis ... mahalanobis -> setNames -> rowSums -> is.data.frame
Execution halted
* checking for unstated dependencies in ‘tests’ ... WARNING
'library' or 'require' call not declared from: ‘testthat’
* checking tests ... [0s/0s] ERROR
  Running ‘testthat.R’ [0s/0s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > # testthat.R
  > 
  > # Load the testthat package
  > library(testthat)
  Error in library(testthat) : there is no package called 'testthat'
  Execution halted
* checking PDF version of manual ... [2s/2s] OK
* checking HTML version of manual ... [0s/0s] OK
* checking for non-standard things in the check directory ... OK
* checking for detritus in the temp directory ... OK
* DONE
Status: 2 ERRORs, 1 WARNING, 2 NOTEs