* using log directory 'd:/RCompile/CRANincoming/R-devel/aelab.Rcheck'
* using R version 4.6.0 alpha (2026-03-31 r89747 ucrt)
* using platform: x86_64-w64-mingw32
* R was compiled by
    gcc.exe (GCC) 14.3.0
    GNU Fortran (GCC) 14.3.0
* running under: Windows Server 2022 x64 (build 20348)
* using session charset: UTF-8
* current time: 2026-04-01 09:00:39 UTC
* checking for file 'aelab/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'aelab' version '1.1.2'
* package encoding: UTF-8
* checking CRAN incoming feasibility ... 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 hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'aelab' can be installed ... OK
* checking installed package size ... OK
* checking package directory ... OK
* checking for future file timestamps ... OK
* checking 'build' 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 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 ... [22s] 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 contents of 'data' directory ... OK
* checking data for non-ASCII characters ... OK
* checking LazyData ... OK
* checking data for ASCII and uncompressed saves ... OK
* checking installed files from 'inst/doc' ... OK
* checking files in 'vignettes' ... OK
* checking examples ... ERROR
Running examples in 'aelab-Ex.R' failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: calculate_regression
> ### Title: calculate_regression
> ### Aliases: calculate_regression
> 
> ### ** Examples
> 
> data(n2o)
> n2o_converted <- convert_time(n2o)
> ref <- data.frame(
+   date_time = as.POSIXct("2023-05-04 09:16:15", tz = "Asia/Taipei"),
+   site = "S1",
+   analyzer = "1074"
+ )
> calculate_regression(n2o_converted, ref, "N2O",
+                      reference_time = "date_time", site = "site",
+                      analyzer_code = "1074")
Error in `map()`:
ℹ In index: 1.
Caused by error in `lm.fit()`:
! 0 (non-NA) cases
Backtrace:
     ▆
  1. ├─aelab::calculate_regression(...)
  2. │ └─purrr::map_dfr(...)
  3. │   └─purrr::map(.x, .f, ...)
  4. │     └─purrr:::map_("list", .x, .f, ..., .progress = .progress)
  5. │       ├─purrr:::with_indexed_errors(...)
  6. │       │ └─base::withCallingHandlers(...)
  7. │       ├─purrr:::call_with_cleanup(...)
  8. │       └─aelab (local) .f(.x[[i]], ...)
  9. │         └─stats::lm(as.numeric(selected_data[[ghg]]) ~ seq_along(selected_data[[ghg]]))
 10. │           └─stats::lm.fit(...)
 11. │             └─base::stop("0 (non-NA) cases")
 12. └─base::.handleSimpleError(...)
 13.   └─purrr (local) h(simpleError(msg, call))
 14.     └─cli::cli_abort(...)
 15.       └─rlang::abort(...)
Execution halted
* checking for unstated dependencies in 'tests' ... OK
* checking tests ... OK
  Running 'testthat.R'
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes ... OK
* checking re-building of vignette outputs ... [12s] OK
* checking PDF version of manual ... [20s] OK
* checking HTML version of manual ... OK
* DONE
Status: 1 ERROR