* using log directory ‘/data/blackswan/ripley/R/packages/tests-devel/tsLSTMx.Rcheck’
* using R Under development (unstable) (2025-11-19 r89039)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    gcc (GCC) 14.2.1 20240912 (Red Hat 14.2.1-3)
    GNU Fortran (GCC) 14.2.1 20240912 (Red Hat 14.2.1-3)
* running under: Fedora Linux 40 (Workstation Edition)
* using session charset: UTF-8
* checking for file ‘tsLSTMx/DESCRIPTION’ ... OK
* checking extension type ... Package
* this is package ‘tsLSTMx’ 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 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 ‘tsLSTMx’ can be installed ... 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 ... OK
* checking whether the package can be loaded with stated dependencies ... OK
* checking whether the package can be unloaded cleanly ... OK
* checking whether the namespace can be loaded with stated dependencies ... OK
* checking whether the namespace can be unloaded cleanly ... OK
* checking loading without being on the library search path ... 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 ... OK
* checking Rd files ... 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 ... OK
* checking examples with --run-donttest ... ERROR
Running examples in ‘tsLSTMx-Ex.R’ failed
The error most likely occurred in:

> ### Name: best_model_on_validation
> ### Title: Evaluate the best LSTM model on the validation set
> ### Aliases: best_model_on_validation
> 
> ### ** Examples
> 
> ## No test: 
> data <- data.frame(
+   Date = as.Date(c("01-04-18", "02-04-18", "03-04-18", "04-04-18", "05-04-18",
+                    "06-04-18", "07-04-18", "08-04-18", "09-04-18", "10-04-18",
+                    "11-04-18", "12-04-18", "13-04-18", "14-04-18", "15-04-18",
+                    "16-04-18", "17-04-18", "18-04-18", "19-04-18", "20-04-18"),
+                  format = "%d-%m-%y"),
+   A = c(0, 0, 4, 12, 20, 16, 16, 0, 12, 18, 12, 18, 18, 0, 0, 33, 31, 38, 76, 198)
+ )
> check_and_format_data(data)
Warning in check_and_format_data(data) :
  Data set compatibility check passed successfully.

        Date  A
1 2018-04-01  0
2 2018-04-02  0
3 2018-04-03  4
4 2018-04-04 12
5 2018-04-05 20
6 2018-04-06 16
> # Add a new column 'X' based on the values in the second column
> data$X <- ifelse(data$A != 0, 1, 0)
> 
> result_embed <- embed_columns(data = data, n_lag = 2)
> new_data <- result_embed$data_frame
> embedded_colnames <- result_embed$column_names
> 
> result_split <- split_data(new_data = new_data, val_ratio = 0.1)
> train_data <- result_split$train_data
> validation_data <- result_split$validation_data
> train_data <- result_split$train_data
> validation_data <- result_split$validation_data
> embedded_colnames <- result_embed$column_names
> numeric_matrices <- convert_to_numeric_matrices(train_data = train_data,
+                                                 validation_data = validation_data,
+                                                 embedded_colnames = embedded_colnames)
> X_train <- numeric_matrices$X_train
> y_train <- numeric_matrices$y_train
> X_val <- numeric_matrices$X_val
> y_val <- numeric_matrices$y_val
> 
> #' initialize_tensorflow()
> 
> X_train <- numeric_matrices$X_train
> X_val <- numeric_matrices$X_val
> reshaped_data <- reshape_for_lstm(X_train = X_train, X_val = X_val)
> X_train <- reshaped_data$X_train
> X_val <- reshaped_data$X_val
> X_train <- reshaped_data$X_train
> y_train <- numeric_matrices$y_train
> X_val <- reshaped_data$X_val
> y_val <- numeric_matrices$y_val
> tf <- reticulate::import("tensorflow")
Error in py_module_import(module, convert = convert) : 
  ModuleNotFoundError: No module named 'tensorflow'
Run `reticulate::py_last_error()` for details.
Calls: <Anonymous> -> py_module_import
Execution halted
* checking PDF version of manual ... OK
* checking for non-standard things in the check directory ... OK
* checking for detritus in the temp directory ... OK
* checking for new files in some other directories ... OK
* DONE

Status: 1 ERROR
See
  ‘/data/blackswan/ripley/R/packages/tests-devel/tsLSTMx.Rcheck/00check.log’
for details.

Command exited with non-zero status 1
Time 1:06.17, 51.70 + 17.45