Package: POSSA 0.6.5

Gáspár Lukács

POSSA: Power Simulation for Sequential Analyses and Multiple Hypotheses

Calculates, via simulation, power and appropriate stopping alpha boundaries (and/or futility bounds) for sequential analyses (i.e., group sequential design) as well as for multiple hypotheses (multiple tests included in an analysis), given any specified global error rate. This enables the sequential use of practically any significance test, as long as the underlying data can be simulated in advance to a reasonable approximation. Lukács (2022) <doi:10.21105/joss.04643>.

Authors:Gáspár Lukács [aut, cre]

POSSA_0.6.5.tar.gz
POSSA_0.6.5.zip(r-4.7-any)POSSA_0.6.5.zip(r-4.6-any)POSSA_0.6.5.zip(r-4.5-any)
POSSA_0.6.5.tgz(r-4.6-any)POSSA_0.6.5.tgz(r-4.5-any)
POSSA_0.6.5.tar.gz(r-4.7-any)POSSA_0.6.5.tar.gz(r-4.6-any)
POSSA_0.6.5.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION
card.svg |card.png
POSSA/json (API)

# Install 'POSSA' in R:
install.packages('POSSA', repos = c('https://gasparl.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/gasparl/possa/issues

On CRAN:

Conda:

multiple-testingr-pkgsequential-analysessequential-designstatistical-analysis

4.30 score 1 stars 6 scripts 216 downloads 3 exports 1 dependencies

Last updated from:339b98c642. Checks:9 OK. Indexed: yes.

TargetResultTimeFilesSyslog
linux-develOK149
source / vignettesOK173
linux-releaseOK142
macos-releaseOK168
macos-oldrelOK170
windows-develOK82
windows-releaseOK82
windows-oldrelOK73
wasm-releaseOK116

Exports:get_ppowsim

Dependencies:data.table

Introduction to POSSA. Sequential tests for two means (t-tests).
User functions for sample simulation and testing | POSSA's sim and pow | Adjusting local alphas | Specifying initial local alphas | Futility bounds | Specifying observation numbers per each sample | Paired (and correlated) samples – "GRP" group notation | Arbitrary stops | More...
Rendered fromv_1_intro.Rmdusingknitr::rmarkdown

Last update: 2025-08-21
Started: 2022-07-20

Recording descriptives. Varying factors. Testing multiple hypotheses.
Recording descriptives | Varying factors | Testing multiple hypotheses | Basics – notation for multiple groups | Sequential design | Specifying local alphas per each test | Non-stopping local alphas | Specifying observation numbers per each group | That's all
Rendered fromv_2_multiple_hypotheses.Rmdusingknitr::rmarkdown

Last update: 2023-03-07
Started: 2022-07-20

Practical examples (unequal variances; ranked data; ANOVA; DeLong's test)
Unequal variances | Ranked data | ANOVA | DeLong's test
Rendered fromv_3_examples.Rmdusingknitr::rmarkdown

Last update: 2023-03-07
Started: 2022-07-20

Benchmarking POSSA.
Rendered fromv_4_benchmarking.Rmdusingknitr::rmarkdown

Last update: 2023-03-07
Started: 2022-07-20

Readme and manuals

Help Manual

Help pageTopics
Extract p-value from testsget_p get_p.aov get_p.aovlist
Power calculationpow
Print pow results data frameprint.possa_pow_df
Print pow resultsprint.possa_pow_list
Print sim resultsprint.possa_sim_df
Simulation proceduresim