* using log directory 'd:/Rcompile/CRANpkg/local/4.4/dblr.Rcheck'
* using R version 4.4.3 (2025-02-28 ucrt)
* using platform: x86_64-w64-mingw32
* R was compiled by
    gcc.exe (GCC) 13.3.0
    GNU Fortran (GCC) 13.3.0
* running under: Windows Server 2022 x64 (build 20348)
* using session charset: UTF-8
* checking for file 'dblr/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'dblr' version '0.1.0'
* package encoding: UTF-8
* 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 hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'dblr' can be installed ... OK
* checking installed package size ... OK
* checking package directory ... 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 ... [2s] OK
* checking whether the package can be loaded with stated dependencies ... [2s] OK
* checking whether the package can be unloaded cleanly ... [2s] OK
* checking whether the namespace can be loaded with stated dependencies ... [2s] OK
* checking whether the namespace can be unloaded cleanly ... [3s] OK
* checking loading without being on the library search path ... [2s] 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 ... [6s] OK
* checking Rd files ... [0s] OK
* checking Rd metadata ... 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 LazyData ... NOTE
  'LazyData' is specified without a 'data' directory
* checking examples ... [4s] ERROR
Running examples in 'dblr-Ex.R' failed
The error most likely occurred in:

> ### Name: dblr_train
> ### Title: Discrete Boosting Logistic Regression Training
> ### Aliases: dblr_train
> 
> ### ** Examples
> 
> # use iris data for example
> dat <- iris
> # create two categorical variables
> dat$Petal.Width <- as.factor((iris$Petal.Width<=0.2)*1+(iris$Petal.Width>1.0)*2)
> dat$Sepal.Length <- (iris$Sepal.Length<=3.0)*2+(iris$Sepal.Length>6.0)*1.25
> # create the response variable
> dat$Species <- as.numeric(dat$Species=='versicolor')
> set.seed(123)
> # random sampling
> index <- sample(1:150,100,replace = FALSE)
> # train the dblr model using the training data
> dblr_fit <- dblr_train(train_x=dat[index,c(1:4)],
+ train_y=dat[index,5],category_cols = c('Petal.Width','Sepal.Length'),
+ metric = 'logloss',subsample = 0.5,eta = 0.05,colsample = 1.0,
+ lambda = 1.0,cv_early_stops = 10,verbose=FALSE)
Warning in throw_err_or_depr_msg("Passed unrecognized parameters: ", paste(head(names_unrecognized),  :
  Passed unrecognized parameters: metrics. This warning will become an error in a future version.
Error in begin_iteration:end_iteration : argument of length 0
Calls: dblr_train -> <Anonymous>
Execution halted
* checking PDF version of manual ... [17s] OK
* checking HTML version of manual ... [1s] OK
* DONE
Status: 1 ERROR, 1 NOTE