Records the plan text and its MD5 hash, the seed, the package and R
versions, the platform, the elapsed time and the verdict, as JSON if
jsonlite is installed and as plain text otherwise. The hash of the plan
text lets a reviewer confirm that the stress test run is the one that was
pre-specified.
Arguments
- result
A
stress_result.- file
Path to write;
NULLreturns the log without writing.- seed
The seed that was passed to
run_plan().
Examples
small <- mmrm::fev_data[mmrm::fev_data$USUBJID %in% paste0("PT", 1:60), ]
spec <- stress_spec(small, "FEV1", "USUBJID", "AVISIT", "ARMCD", "PBO", covariates = ~ FEV1_BL,
covariance = "cs", method = "Satterthwaite", vcov = "Asymptotic")
plan <- stress_plan(spec, covariance = list(structures = c("cs", "ar1h")), inference = NULL,
covariates = NULL, weights = FALSE, loo = NULL, permute = NULL,
reference = NULL, estimator = NULL, fragility = NULL)
str(stress_log(run_plan(plan)))
#> List of 15
#> $ title : chr "Pre-specified stress test"
#> $ plan_md5 : chr "a7bf0072dc5e14c76f6ef8c430322add"
#> $ plan : chr [1:11] "Pre-specified stress test" "" "Pre-specified analysis: FEV1 ~ FEV1_BL + ARMCD + AVISIT + ARMCD:AVISIT + cs(AVISIT | USUBJID); contrast TRT min"| __truncated__ "" ...
#> $ run_time : chr "2026-10-30 17:32:29 UTC"
#> $ seed : num 1
#> $ elapsed_min: num 0
#> $ r_version : chr "R version 4.6.2 (2026-10-29)"
#> $ ballast : chr "0.7.4"
#> $ mmrm : chr "0.3.19"
#> $ platform : chr "x86_64-pc-linux-gnu"
#> $ data :List of 4
#> ..$ subjects: int 60
#> ..$ rows : int 240
#> ..$ response: chr "FEV1"
#> ..$ arms : chr [1:2] "PBO" "TRT"
#> $ families : chr "covariance"
#> $ rows : int 2
#> $ counted : int 1
#> $ verdict :List of 6
#> ..$ stability : chr "robust"
#> ..$ stability_sensitivity: chr "robust"
#> ..$ marginal : logi FALSE
#> ..$ crossed : int 0
#> ..$ outside_ci : int 0
#> ..$ reversed : int 0