* using log directory ‘/srv/hornik/tmp/CRAN_pretest/OPCreg.Rcheck’
* using R Under development (unstable) (2025-04-08 r88126)
* 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 ... 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 ... [3s/3s] 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 ... [1s/1s] ERROR
Running examples in ‘OPCreg-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: PCR
> ### Title: Principal Component Regression (PCR)
> ### Aliases: PCR
> 
> ### ** Examples
> 
> # Example data
> set.seed(1234)
> n <- 2000
> p <- 10
> mu0 <- as.matrix(runif(p, 0))
> sigma0 <- as.matrix(runif(p, 0, 10))
> ro <- as.matrix(c(runif(round(p / 2), -1, -0.8), runif(p - round(p / 2), 0.8, 1)))
> R0 <- ro %*% t(ro)
> diag(R0) <- 1
> Sigma0 <- sigma0 %*% t(sigma0) * R0
> x <- mvrnorm(n, mu0, Sigma0)
Error in mvrnorm(n, mu0, Sigma0) : could not find function "mvrnorm"
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 NOTE