* using log directory ‘/srv/hornik/tmp/CRAN_pretest/SFM.Rcheck’
* using R Under development (unstable) (2024-10-25 r87268)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    Debian clang version 19.1.1 (1)
    Debian flang-new version 19.1.1 (1)
* running under: Debian GNU/Linux trixie/sid
* using session charset: UTF-8
* checking for file ‘SFM/DESCRIPTION’ ... OK
* checking extension type ... Package
* this is package ‘SFM’ version ‘0.1.0’
* package encoding: UTF-8
* checking CRAN incoming feasibility ... [3s/3s] NOTE
Maintainer: ‘Guangbao Guo <ggb11111111@163.com>’

New submission

Possibly misspelled words in DESCRIPTION:
  KMO (8:196)

Unknown, possibly misspelled, fields in DESCRIPTION:
  ‘Author@R’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Guangbao",
                      family = "Guo",
                      role = c("aut", "cre"),
                      email = "ggb11111111@163.com"),
               person(given = "Yu",
                      family = "Jin",
                      role = "aut"))
as necessary.

The Title field should be in title case. Current version is:
  ‘A package for analyzing Skew Factor Models using various principal component methods’
In title case that is:
  ‘A Package for Analyzing Skew Factor Models using Various Principal Component Methods’

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 ‘SFM’ 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 code 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
SOPC_estimation: no visible global function definition for ‘SOPC’
calculate_errors: no visible global function definition for ‘SOPC’
calculate_errors: no visible global function definition for
  ‘frobenius.norm’
perform_skew_factor_model_tests: no visible global function definition
  for ‘runif’
perform_skew_factor_model_tests: no visible global function definition
  for ‘mvrnorm’
perform_skew_factor_model_tests: no visible binding for global variable
  ‘distribution_type’
perform_skew_factor_model_tests: no visible global function definition
  for ‘rsn’
perform_skew_factor_model_tests: no visible global function definition
  for ‘rsc’
perform_skew_factor_model_tests: no visible global function definition
  for ‘rst’
perform_skew_factor_model_tests: no visible binding for global variable
  ‘r’
perform_skew_factor_model_tests: no visible global function definition
  for ‘KMO’
perform_skew_factor_model_tests: no visible global function definition
  for ‘cortest.bartlett’
perform_skew_factor_model_tests: no visible global function definition
  for ‘cor’
Undefined global functions or variables:
  KMO SOPC cor cortest.bartlett distribution_type frobenius.norm
  mvrnorm r rsc rsn rst runif
Consider adding
  importFrom("stats", "cor", "runif")
to your NAMESPACE file.
* checking Rd files ... [0s/0s] NOTE
checkRd: (-1) SFM.Rd:16: Lost braces; missing escapes or markup?
    16 | @param {xi} A numerical parameter used exclusively in the "Skew-t" distribution, representing the distribution's xi parameter.}
       |        ^
* 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 ... WARNING
Documented arguments not in \usage in Rd file 'SFM.Rd':
  ‘{omega}’ ‘{alpha}’
Assignments in \usage in Rd file 'SFM.Rd':
  X <- SFM(n, p, m, distribution_type)

Bad \usage lines found in Rd file 'SOPC_estimation.Rd':
  function(data, gamma, eta)
Bad \usage lines found in Rd file 'calculate_errors.Rd':
  calculate_errors <- function(data, A, D)

Functions with \usage entries need to have the appropriate \alias
entries, and all their arguments documented.
The \usage entries must correspond to syntactically valid R code.
See chapter ‘Writing R documentation files’ in the ‘Writing R
Extensions’ manual.
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking examples ... [0s/0s] ERROR
Running examples in ‘SFM-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: SFM
> ### Title: The SFM function is to generate Skew Factor Models data.
> ### Aliases: SFM perform_skew_factor_model_tests
> 
> ### ** Examples
> 
> library(psych)
> library(MASS)
> library(SOPC)
> library(sn)
Loading required package: stats4

Attaching package: ‘sn’

The following object is masked from ‘package:psych’:

    tr

The following object is masked from ‘package:stats’:

    sd

> library(matrixcalc)

Attaching package: ‘matrixcalc’

The following object is masked from ‘package:sn’:

    vech

> n <- 2000
> p <- 10
> m <- 5
> xi <- 5
> omega <- 2
> alpha <- 5
> distribution_type<- "Skew-Normal Distribution"
> X <- SFM(n, p, m,xi,omega,alpha,distribution_type)
Error in SFM(n, p, m, xi, omega, alpha, distribution_type) : 
  could not find function "SFM"
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: 1 ERROR, 1 WARNING, 3 NOTEs