* using log directory ‘/srv/hornik/tmp/CRAN_pretest/enhancer.Rcheck’
* using R Under development (unstable) (2026-04-07 r89803)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    Debian clang version 21.1.8 (3+b1)
    Debian flang version 21.1.8 (3+b1)
* running under: Debian GNU/Linux forky/sid
* using session charset: UTF-8
* current time: 2026-04-08 02:21:06 UTC
* checking for file ‘enhancer/DESCRIPTION’ ... OK
* this is package ‘enhancer’ version ‘1.1.1’
* checking CRAN incoming feasibility ... [4s/5s] OK
* 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 ‘enhancer’ can be installed ... [6s/6s] 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 ... [1s/1s] OK
* checking whether the package can be loaded with stated dependencies ... [1s/1s] OK
* checking whether the package can be unloaded cleanly ... [1s/1s] OK
* checking whether the namespace can be loaded with stated dependencies ... [1s/1s] OK
* checking whether the namespace can be unloaded cleanly ... [1s/1s] OK
* checking loading without being on the library search path ... [1s/1s] OK
* checking whether startup messages can be suppressed ... [1s/1s] 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 ... [8s/8s] 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 contents of ‘data’ directory ... OK
* checking data for non-ASCII characters ... [1s/1s] OK
* checking LazyData ... OK
* checking data for ASCII and uncompressed saves ... OK
* checking examples ... [10s/10s] ERROR
Running examples in ‘enhancer-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: redmm
> ### Title: Reduced Model Matrix
> ### Aliases: redmm
> 
> ### ** Examples
> 
>   
> # data set including the covariate to be reduced
> DT <- data.frame(Env=sort(rep(paste("e",1:5,sep="_"), 2)))
> DT
   Env
1  e_1
2  e_1
3  e_2
4  e_2
5  e_3
6  e_3
7  e_4
8  e_4
9  e_5
10 e_5
> # GxE matrix
> H0 <- matrix(rnorm(30), nrow=5, ncol=6) # 5 envs, 6 features
> rownames(H0) <- paste("e",1:5,sep="_")
> colnames(H0) <- paste("x",1:6,sep="_")
> H0
           x_1        x_2        x_3         x_4         x_5         x_6
e_1 -0.6264538 -0.8204684  1.5117812 -0.04493361  0.91897737 -0.05612874
e_2  0.1836433  0.4874291  0.3898432 -0.01619026  0.78213630 -0.15579551
e_3 -0.8356286  0.7383247 -0.6212406  0.94383621  0.07456498 -1.47075238
e_4  1.5952808  0.5757814 -2.2146999  0.82122120 -1.98935170 -0.47815006
e_5  0.3295078 -0.3053884  1.1249309  0.59390132  0.61982575  0.41794156
> # get compression
> Z <- with(DT,  redmm(Env, M = H0, nPC = 3))
Error: Please install the RSpectra package to use the redmm() function.
Execution halted
* checking PDF version of manual ... [3s/3s] OK
* checking HTML version of manual ... [2s/2s] OK
* checking for non-standard things in the check directory ... OK
* checking for detritus in the temp directory ... OK
* DONE
Status: 1 ERROR