- using R Under development (unstable) (2026-05-09 r90031 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: 2026-05-10 16:59:38 UTC
- checking for file 'powergrid/DESCRIPTION' ... OK
- this is package 'powergrid' version '0.5.0'
- 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 'powergrid' can be installed ... OK
See the install log for details.
- checking installed package size ... OK
- checking package directory ... 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 ... [0s] OK
- checking whether the package can be loaded with stated dependencies ... [0s] OK
- checking whether the package can be unloaded cleanly ... [0s] OK
- checking whether the namespace can be loaded with stated dependencies ... [0s] OK
- checking whether the namespace can be unloaded cleanly ... [0s] OK
- checking loading without being on the library search path ... [0s] 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 ... [4s] OK
- checking Rd files ... [1s] 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 installed files from 'inst/doc' ... OK
- checking files in 'vignettes' ... OK
- checking examples ... [1s] ERROR
Running examples in 'powergrid-Ex.R' failed
The error most likely occurred in:
> ### Name: AddExample
> ### Title: Add an example to an existing PowerPlot or GridPlot
> ### Aliases: AddExample
>
> ### ** Examples
>
>
> ## For more examples, see ?PowerPlot
>
> ## Set up a grid of n, delta and sd:
> sse_pars = list(
+ n = seq(from = 10, to = 60, by = 4),
+ delta = seq(from = 0.5, to = 1.5, by = 0.1), # effect size
+ sd = seq(.1, 1.1, .2)) # Standard deviation
> ## Define a power function using these parameters:
> PowFun <- function(n, delta, sd){ # power for a t-test at alpha = .05
+ ptt = power.t.test(n = n/2, delta = delta, sd = sd,
+ sig.level = 0.05)
+ return(ptt$power)
+ }
> ## Evaluate PowFun across the grid defined by sse_pars:
> power_array = PowerGrid(pars = sse_pars, fun = PowFun, n_iter = NA)
>
> ## ======================
> ## PowerPlot
> ## ======================
> PowerPlot(power_array,
+ slicer = list(sd = .7),
+ )
> AddExample(power_array,
+ slicer = list(sd = .7), # be sure to cut out the same plain as above
+ example = list(delta = .9),
+ target_value = .9,
+ col = 'blue')
> AddExample(power_array,
+ slicer = list(sd = .7),
+ example = list(delta = c(.7, 1)), # multiple examples
+ target_value = .9,
+ col = 'yellow')
> ## Careful, you can move the slicer argument to example:
> AddExample(power_array,
+ example = list(delta = 1.2, sd = .7), # delta (x-axis) first
+ target_value = .9,
+ col = 'green')
> ## Careful, because you can put the wrong value on x-axis!
> AddExample(power_array,
+ example = list(sd = .7, delta = 1.2), # sd first?!
+ target_value = .9,
+ col = 'red')
>
> ## ======================
> ## GridPlot
> ## ======================
> GridPlot(power_array, target_value = .9)
Warning: The target value wasn't achieved at any of the parameter combinations in x. Therefore, no lines can be drawn.
Error in 1:ncol(y_rec) : argument of length 0
Calls: GridPlot
Execution halted
- checking for unstated dependencies in 'tests' ... OK
- checking tests ... [24s] OK
Running 'testthat.R' [24s]
- checking for unstated dependencies in vignettes ... OK
- checking package vignettes ... OK
- checking re-building of vignette outputs ... [2s] ERROR
Error(s) in re-building vignettes:
--- re-building 'powergrid.Rmd' using rmarkdown
Quitting from powergrid.Rmd:212-216 [GridPlot]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `1:ncol(y_rec)`:
! argument of length 0
---
Backtrace:
▆
1. └─powergrid::GridPlot(...)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Error: processing vignette 'powergrid.Rmd' failed with diagnostics:
argument of length 0
--- failed re-building 'powergrid.Rmd'
SUMMARY: processing the following file failed:
'powergrid.Rmd'
Error: Vignette re-building failed.
Execution halted
- checking PDF version of manual ... [20s] OK
- checking HTML version of manual ... [5s] OK
- DONE
Status: 2 ERRORs