• using R Under development (unstable) (2025-12-11 r89152)
• using platform: x86_64-pc-linux-gnu
• R was compiled by     gcc-15 (Debian 15.2.0-9) 15.2.0     GNU Fortran (Debian 15.2.0-9) 15.2.0
• running under: Debian GNU/Linux forky/sid
• using session charset: UTF-8
• checking for file ‘DALEXtra/DESCRIPTION’ ... OK
• this is package ‘DALEXtra’ version ‘2.3.0’
• package encoding: UTF-8
• checking CRAN incoming feasibility ... [1s/1s] NOTE Maintainer: ‘Szymon Maksymiuk <sz.maksymiuk@gmail.com>’ The Description field contains   'DALEXtra' creates 'DALEX' Biecek (2018) <arXiv:1806.08915> explainer Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.
• 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 ‘DALEXtra’ can be installed ... OK See the install log for details.
• 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/3s] OK
• checking whether the package can be loaded with stated dependencies ... [2s/2s] OK
• checking whether the package can be unloaded cleanly ... [1s/2s] OK
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• checking use of S3 registration ... OK
• checking dependencies in R code ... OK
• checking S3 generic/method consistency ... OK
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• checking foreign function calls ... OK
• checking R code for possible problems ... [8s/9s] OK
• checking Rd files ... [0s/0s] OK
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• checking for unstated dependencies in examples ... OK
• checking examples ... [3s/3s] ERROR Running examples in ‘DALEXtra-Ex.R’ failed The error most likely occurred in: > base::assign(".ptime", proc.time(), pos = "CheckExEnv") > ### Name: explain_xgboost > ### Title: Create explainer from your xgboost model > ### Aliases: explain_xgboost > > ### ** Examples > > library("xgboost") > library("DALEXtra") > library("mlr") Loading required package: ParamHelpers > # 8th column is target that has to be omitted in X data > data <- as.matrix(createDummyFeatures(titanic_imputed[,-8])) > model <- xgboost(data, titanic_imputed$survived, nrounds = 10, + params = list(objective = "binary:logistic"), + prediction = TRUE) Warning in throw_err_or_depr_msg("Parameter(s) have been removed from this function: ", :   Parameter(s) have been removed from this function: params. This warning will become an error in a future version. Warning in throw_err_or_depr_msg("Passed unrecognized parameters: ", paste(head(names_unrecognized), :   Passed unrecognized parameters: prediction. This warning will become an error in a future version. > # explainer with encode functiom > explainer_1 <- explain_xgboost(model, data = titanic_imputed[,-8], + titanic_imputed$survived, + encode_function = function(data) { + as.matrix(createDummyFeatures(data)) + }) Preparation of a new explainer is initiated   -> model label : xgb.Booster ( [33m default [39m )   -> data : 2207 rows 7 cols   -> target variable : 2207 values   -> predict function : yhat.xgb.Booster will be used ( [33m default [39m )   -> predicted values : No value for predict function target column. ( [33m default [39m ) Error in strsplit(model$params$objective, ":", fixed = TRUE) :   non-character argument Calls: explain_xgboost ... explain -> model_info -> model_info.xgb.Booster -> strsplit Execution halted
• checking for unstated dependencies in ‘tests’ ... OK
• checking tests ... [174s/208s] ERROR   Running ‘testthat.R’ [174s/207s] Running the tests in ‘tests/testthat.R’ failed. Complete output:   > library(testthat)   > library(DALEXtra)   Loading required package: DALEX   Welcome to DALEX (version: 2.5.3).   Find examples and detailed introduction at: http://ema.drwhy.ai/   Additional features will be available after installation of: ggpubr.   Use 'install_dependencies()' to get all suggested dependencies   >   > test_check("DALEXtra")   Preparation of a new explainer is initiated     -> model label : LM     -> data : 9000 rows 6 cols     -> target variable : 9000 values     -> predict function : yhat.WrappedModel will be used ( [33m default [39m )     -> predicted values : No value for predict function target column. ( [33m default [39m )     -> model_info : package mlr , ver. 2.19.3 , task regression ( [33m default [39m )     -> predicted values : numerical, min = 1792.597 , mean = 3506.836 , max = 6241.447     -> residual function : difference between y and yhat ( [33m default [39m )     -> residuals : numerical, min = -257.2555 , mean = 4.687686 , max = 472.356     [32m A new explainer has been created! [39m   Preparation of a new explainer is initiated     -> model label : RF     -> data : 9000 rows 6 cols     -> target variable : 9000 values     -> predict function : yhat.WrappedModel will be used ( [33m default [39m )     -> predicted values : No value for predict function target column. ( [33m default [39m )     -> model_info : package mlr , ver. 2.19.3 , task regression ( [33m default [39m )     -> predicted values : numerical, min = 1806.22 , mean = 3504.531 , max = 6267.857     -> residual function : difference between y and yhat ( [33m default [39m )     -> residuals : numerical, min = -546.8325 , mean = 6.992931 , max = 729.4041     [32m A new explainer has been created! [39m   Preparation of a new explainer is initiated     -> model label : GBM     -> data : 9000 rows 6 cols     -> target variable : 9000 values     -> predict function : yhat.WrappedModel will be used ( [33m default [39m )     -> predicted values : No value for predict function target column. ( [33m default [39m )     -> model_info : package mlr , ver. 2.19.3 , task regression ( [33m default [39m )     -> predicted values : numerical, min = 2131.082 , mean = 3503.874 , max = 6084.606     -> residual function : difference between y and yhat ( [33m default [39m )     -> residuals : numerical, min = -572.9498 , mean = 7.649449 , max = 723.4952     [32m A new explainer has been created! [39m   additional arguments ignored in warning()   Preparation of a new explainer is initiated     -> model label : ranger ( [33m default [39m )     -> data : 2207 rows 7 cols     -> target variable : 2207 values     -> predict function : yhat.ranger will be used ( [33m default [39m )     -> predicted values : No value for predict function target column. ( [33m default [39m )     -> model_info : package ranger , ver. 0.17.0 , task classification ( [33m default [39m )     -> predicted values : numerical, min = 0.01548687 , mean = 0.3223298 , max = 0.9936175     -> residual function : difference between y and yhat ( [33m default [39m )     -> residuals : numerical, min = -0.7886881 , mean = -0.0001729859 , max = 0.8856985     [32m A new explainer has been created! [39m   additional arguments ignored in warning()   Saving _problems/test_xgboost_explain-13.R   Saving _problems/test_xgboost_explain-31.R   Saving _problems/test_xgboost_explain-50.R   [ FAIL 3 | WARN 15 | SKIP 11 | PASS 44 ]      ══ Skipped tests (11) ══════════════════════════════════════════════════════════   • Conda test env needed for tests (6): 'test_create_env.R:6:3',     'test_create_env.R:27:3', 'test_create_env.R:40:3',     'test_keras_explain.R:6:2', 'test_scikitlearn_explain.R:6:3',     'tests_prints.R:8:3'   • JAVA entry needed for tests (4): 'test_h2o_explain.R:8:3',     'test_h2o_explain.R:33:3', 'test_h2o_explain.R:56:3',     'test_h2o_explain.R:90:3'   • Test with windows (1): 'test_champion_challenger.R:5:3'      ══ Failed tests ════════════════════════════════════════════════════════════════   ── Error ('test_xgboost_explain.R:11:3'): creating explainer classif ───────────   Error in `strsplit(model$params$objective, ":", fixed = TRUE)`: non-character argument   Backtrace:       ▆    1. └─DALEXtra::explain_xgboost(...) at test_xgboost_explain.R:11:3    2. └─DALEX::explain(...)    3. ├─DALEX::model_info(model, is_multiclass = task_subtype)    4. └─DALEXtra:::model_info.xgb.Booster(model, is_multiclass = task_subtype)    5. └─base::strsplit(model$params$objective, ":", fixed = TRUE)   ── Error ('test_xgboost_explain.R:29:3'): creating explainer regr ──────────────   Error in `strsplit(model$params$objective, ":", fixed = TRUE)`: non-character argument   Backtrace:       ▆    1. └─DALEXtra::explain_xgboost(...) at test_xgboost_explain.R:29:3    2. └─DALEX::explain(...)    3. ├─DALEX::model_info(model, is_multiclass = task_subtype)    4. └─DALEXtra:::model_info.xgb.Booster(model, is_multiclass = task_subtype)    5. └─base::strsplit(model$params$objective, ":", fixed = TRUE)   ── Error ('test_xgboost_explain.R:48:3'): creating explainer multi ─────────────   Error in `strsplit(model$params$objective, ":", fixed = TRUE)`: non-character argument   Backtrace:       ▆    1. └─DALEXtra::explain_xgboost(...) at test_xgboost_explain.R:48:3    2. └─DALEX::explain(...)    3. ├─DALEX::model_info(model, is_multiclass = task_subtype)    4. └─DALEXtra:::model_info.xgb.Booster(model, is_multiclass = task_subtype)    5. └─base::strsplit(model$params$objective, ":", fixed = TRUE)      [ FAIL 3 | WARN 15 | SKIP 11 | PASS 44 ]   Error:   ! Test failures.   Execution halted
• checking PDF version of manual ... [4s/5s] OK
• checking HTML version of manual ... [2s/3s] OK
• checking for non-standard things in the check directory ... OK
• DONE

Status: 2 ERRORs, 1 NOTE