* using log directory ‘/srv/hornik/tmp/CRAN_pretest/OPCreg.Rcheck’
* using R Under development (unstable) (2025-04-06 r88113)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    Debian clang version 19.1.7 (1+b1)
    Debian flang-new version 19.1.7 (1+b1)
* running under: Debian GNU/Linux trixie/sid
* using session charset: UTF-8
* checking for file ‘OPCreg/DESCRIPTION’ ... OK
* this is package ‘OPCreg’ version ‘0.2.0’
* package encoding: UTF-8
* checking CRAN incoming feasibility ... [3s/4s] NOTE
Maintainer: ‘Guangbao Guo <ggb11111111@163.com>’

New submission
* 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 ‘OPCreg’ can be installed ... [1s/1s] OK
* checking package directory ... OK
* checking for future file timestamps ... OK
* checking DESCRIPTION meta-information ... NOTE
Author field differs from that derived from Authors@R
  Author:    ‘Guangbao Guo [aut, cre](ORCID:<https://orcid.org/0000-0002-4115-6218>), Chunjie Wei [aut]’
  Authors@R: ‘Guangbao Guo [aut, cre] (ORCID: <https://orcid.org/0000-0002-4115-6218>), Chunjie Wei [aut]’

* 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] OK
* 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 ‘OPCreg-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: PPC
> ### Title: The perturbation principal component method can handle online
> ###   data sets.
> ### Aliases: PPC
> 
> ### ** Examples
> 
> library(MASS)
> n=2000;p=20;m=9;
> mu=t(matrix(rep(runif(p,0,1000),n),p,n))     
> mu0=as.matrix(runif(m,0))
> sigma0=diag(runif(m,1))
> F=matrix(mvrnorm(n,mu0,sigma0),nrow=n)
> A=matrix(runif(p*m,-1,1),nrow=p)
> D=as.matrix(diag(rep(runif(p,0,1))))
> epsilon=matrix(mvrnorm(n,rep(0,p),D),nrow=n)
> data=mu+F%*%t(A)+epsilon 
> PPC(data=data,m=m,eta=0.8) 
Error in PPC(data = data, m = m, eta = 0.8) : 
  could not find function "PPC"
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, 2 NOTEs