* using log directory ‘/home/hornik/tmp/CRAN_special_donttest/DistributionIV.Rcheck’
* using R Under development (unstable) (2025-06-26 r88362)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    gcc-14 (Debian 14.2.0-19) 14.2.0
    GNU Fortran (Debian 14.2.0-19) 14.2.0
* running under: Debian GNU/Linux 13 (trixie)
* using session charset: UTF-8
* using option ‘--run-donttest’
* checking for file ‘DistributionIV/DESCRIPTION’ ... OK
* checking extension type ... Package
* this is package ‘DistributionIV’ version ‘0.1.1’
* package encoding: UTF-8
* checking CRAN incoming feasibility ... [4s/4s] 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 serialization versions ... OK
* checking whether package ‘DistributionIV’ can be installed ... [4s/4s] 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 ... [6s/6s] 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 ‘DistributionIV-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: div
> ### Title: Distributional IV Model Function
> ### Aliases: div
> 
> ### ** Examples
> 
> ## No test: 
> # Simulate data -------------------------------------------------------------
> p_Z <- 4
> p_X <- 2
> 
> set.seed(2209)
> n_train <- 1000
> Z <- matrix(rnorm(n_train * p_Z, mean = 2), ncol = p_Z)
> H <- rnorm(n_train, mean = 0, sd = 1.5)
> X1 <- 0.1 * (Z[, 1] + rnorm(n_train, sd = 0.1)) ^ 2 +
+  (Z[, 2] + rnorm(n_train, sd = 1)) ^ 2 + H + rnorm(n_train, sd = 0.1)
> X2 <- 0.5 * (Z[, 3] + Z[, 4]) ^ 2 + 0.1 * H ^ 2 + rnorm(n_train, sd = 0.1)
> X <- matrix(cbind(X1, X2), ncol = p_X)
> Y <- 0.5 * X[, 1] + 0.2 * (X[, 2] + rnorm(n_train, sd = 0.2) + H) ^ 2 +
+  rnorm(n_train, sd = 0.1)
> 
> n_test <- n_train
> Ztest <- matrix(rnorm(n_test * p_Z, mean = 2), ncol = p_Z)
> Htest <- rnorm(n_test, mean = 0, sd = 1.5)
> X1test <- 0.1 * (Ztest[, 1] + rnorm(n_test, sd = 0.1)) ^ 2 +
+  (Ztest[, 2] + rnorm(n_test, sd = 1)) ^ 2 + Htest + rnorm(n_test, sd = 0.1)
> X2test <- 0.5 * (Ztest[, 3] + Ztest[, 4]) ^ 2 + 0.1 * Htest ^ 2 + rnorm(n_test, sd = 0.1)
> Xtest <- matrix(cbind(X1test, X2test), ncol = p_X)
> Ytest <- 0.5 * Xtest[, 1] + 0.2 * (Xtest[, 2] + rnorm(n_test, sd = 0.2) + Htest) ^ 2 +
+  rnorm(n_test, sd = 0.1)
> 
> # Fit generativeIV model ----------------------------------------------------
> # Consider increasing number of epochs. Here: num_epochs = 100 for fast computation only.
> DIV_model <- div(Z = Z, X = X, Y = Y, num_epochs = 100)
Torch dependencies are missing. Please install them using torch::install_torch().
Error in (function (size, options, memory_format)  : 
  Lantern is not loaded. Please use `install_torch()` to install additional dependencies.
Calls: div ... call_c_function -> do_call -> do.call -> <Anonymous>
Execution halted
* checking for unstated dependencies in ‘tests’ ... OK
* checking tests ... [1s/1s] OK
  Running ‘testthat.R’ [1s/1s]
* 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