{ "_id": "6a1b60c71d7bb097a0a11a88", "Package": "pwrss", "Version": "1.2.0", "Type": "Package", "Title": "Statistical Power and Sample Size Calculation Tools", "Authors@R": "c(person(given = \"Metin\", family = \"Bulus\", email = \"bulusmetin@gmail.com\", role = c(\"aut\", \"cre\", \"cph\")),\nperson(given = \"Sebastian\", family = \"Jentschke\", email = \"sebastian.jentschke@uib.no\", role = c(\"aut\", \"cph\")))", "Maintainer": "Metin Bulus ", "Description": "The 'pwrss' R package provides flexible and comprehensive\nfunctions for statistical power and minimum required sample\nsize calculations across a wide range of commonly used\nhypothesis tests in psychological, biomedical, and social\nsciences.", "License": "GPL (>= 3)", "Language": "en-US", "Encoding": "UTF-8", "Roxygen": "list(markdown = TRUE)", "VignetteBuilder": "knitr", "URL": "https://metinbulus.github.io/pwrss/", "BugReports": "https://github.com/metinbulus/pwrss/issues", "Config/testthat/edition": "3", "ByteCompile": "yes", "Config/roxygen2/version": "8.0.0", "Repository": "https://metinbulus.r-universe.dev", "Date/Publication": "2026-05-30 21:20:56 UTC", "RemoteUrl": "https://github.com/metinbulus/pwrss", "RemoteRef": "HEAD", "RemoteSha": "beaa5a6a8e9d602223981cf31c327e7ede68c94c", "NeedsCompilation": "no", "Packaged": { "Date": "2026-05-30 22:07:12 UTC", "User": "root" }, "Author": "Metin Bulus [aut, cre, cph],\nSebastian Jentschke [aut, cph]", "MD5sum": "3f5dc2b1cd1262e8600a3dfc9802b798", "_user": "metinbulus", "_type": "src", "_file": "pwrss_1.2.0.tar.gz", "_fileid": "49438ddd2d21bdbe29b2017b87a20d38b2ac6a76f72f8b05521f90c74821a917", "_filesize": 1832205, "_sha256": "49438ddd2d21bdbe29b2017b87a20d38b2ac6a76f72f8b05521f90c74821a917", "_created": "2026-05-30T22:07:12.000Z", "_published": "2026-05-30T22:12:23.917Z", "_distro": "noble", "_jobs": [ { "job": 78681004175, "time": 264, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "7311726387" }, { "job": 78681004180, "time": 202, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7311720337" }, { "job": 78681004181, "time": 148, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "7311715057" }, { "job": 78681004200, "time": 176, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7311717726" }, { "job": 78680622654, "time": 426, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7311700155" }, { "job": 78681004174, "time": 95, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7311710168" }, { "job": 78681004191, "time": 236, "config": "windows-devel", "r": "4.7.0", "check": "OK", "artifact": "7311723682" }, { "job": 78681004219, "time": 211, "config": "windows-oldrel", "r": "4.5.3", "check": "OK", "artifact": "7311721217" }, { "job": 78681004213, "time": 233, "config": "windows-release", "r": "4.6.0", "check": "OK", "artifact": "" } ], "_buildurl": "https://github.com/r-universe/metinbulus/actions/runs/26696025486", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/metinbulus/pwrss", "_commit": { "id": "beaa5a6a8e9d602223981cf31c327e7ede68c94c", "author": "Sebastian Jentschke ", "committer": "Sebastian Jentschke ", "message": "Added require r-squared for effect size identification (from metinbulus)\n", "time": 1780176056 }, "_maintainer": { "name": "Metin Bulus", "email": "bulusmetin@gmail.com", "login": "metinbulus", "description": "", "uuid": 13105122 }, "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 3.5.0", "role": "Depends" }, { "package": "knitr", "role": "Suggests" }, { "package": "sadists", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" }, { "package": "testthat", "version": ">= 3.0.0", "role": "Suggests" } ], "_owner": "metinbulus", "_selfowned": true, "_usedby": 0, "_updates": [ { "week": "2025-38", "n": 2 }, { "week": "2025-41", "n": 1 }, { "week": "2025-42", "n": 15 }, { "week": "2026-04", "n": 1 }, { "week": "2026-05", "n": 21 }, { "week": "2026-06", "n": 43 }, { "week": "2026-07", "n": 8 }, { "week": "2026-08", "n": 32 }, { "week": "2026-09", "n": 22 }, { "week": "2026-10", "n": 13 }, { "week": "2026-14", "n": 1 }, { "week": "2026-18", "n": 4 }, { "week": "2026-19", "n": 4 }, { "week": "2026-20", "n": 1 }, { "week": "2026-21", "n": 5 }, { "week": "2026-22", "n": 7 } ], "_tags": [], "_stars": 2, "_contributors": [ { "user": "sjentsch", "count": 186, "uuid": 37706914 }, { "user": "metinbulus", "count": 52, "uuid": 13105122 } ], "_userbio": { "uuid": 13105122, "type": "user", "name": "Metin Bulus" }, "_downloads": { "count": 1416, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/pwrss" }, "_devurl": "https://github.com/metinbulus/pwrss", "_pkgdown": "https://metinbulus.github.io/pwrss/", "_searchresults": 107, "_rbuild": "4.6.0", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/NEWS.html", "extra/NEWS.txt", "extra/pwrss.html", "extra/readme.html", "extra/readme.md", "manual.pdf" ], "_homeurl": "https://github.com/metinbulus/pwrss", "_realowner": "metinbulus", "_cranurl": true, "_releases": [ { "version": "0.1.0", "date": "2022-11-09" }, { "version": "0.2.0", "date": "2022-12-14" }, { "version": "0.3.0", "date": "2023-03-12" }, { "version": "0.3.1", "date": "2023-04-11" }, { "version": "1.0.0", "date": "2025-09-16" } ], "_exports": [ "cles.to.d", "cor.to.z", "cors.to.q", "d.to.cles", "etasq.to.f", "f.to.etasq", "f.to.rsq", "factorial.contrasts", "inflate.sample", "joint.probs.2x2", "marginal.probs.2x2", "means.to.d", "means.to.etasq", "power.binom.test", "power.chisq.gof", "power.chisq.test", "power.exact.fisher", "power.exact.mcnemar", "power.exact.onecor", "power.exact.oneprop", "power.exact.twoprop", "power.exact.twoprops", "power.exact.twoprops.fisher", "power.exact.twoprops.mcnemar", "power.f.ancova", "power.f.ancova.keppel", "power.f.ancova.shieh", "power.f.mixed.anova", "power.f.reg", "power.f.regression", "power.f.test", "power.lp.test", "power.np.wilcox", "power.np.wilcoxon", "power.t.contrast", "power.t.contrasts", "power.t.reg", "power.t.regression", "power.t.student", "power.t.test", "power.t.welch", "power.z.logistic", "power.z.logreg", "power.z.med", "power.z.mediation", "power.z.onecor", "power.z.oneprop", "power.z.poisreg", "power.z.poisson", "power.z.steiger", "power.z.test", "power.z.twocor", "power.z.twocors", "power.z.twocors.steiger", "power.z.twoprop", "power.z.twoprops", "probs.to.h", "probs.to.w", "pwrss.chisq.gofit", "pwrss.f.ancova", "pwrss.f.reg", "pwrss.f.regression", "pwrss.f.rmanova", "pwrss.np.2groups", "pwrss.np.2means", "pwrss.t.2means", "pwrss.t.mean", "pwrss.t.reg", "pwrss.t.regression", "pwrss.z.2corrs", "pwrss.z.2means", "pwrss.z.2props", "pwrss.z.corr", "pwrss.z.logistic", "pwrss.z.logreg", "pwrss.z.mean", "pwrss.z.med", "pwrss.z.mediation", "pwrss.z.poisreg", "pwrss.z.poisson", "pwrss.z.prop", "pwrss.z.reg", "pwrss.z.regression", "q.to.cors", "rsq.to.f", "z.to.cor" ], "_help": [ { "page": "cor.to.z", "title": "Conversion from a correlation to a z-value (Fisher's z-transformation)", "topics": [ "cor.to.z" ] }, { "page": "cors.to.q", "title": "Conversion from a correlation Difference to Cohen's q", "topics": [ "cors.to.q" ] }, { "page": "d.to.cles", "title": "Conversion from Cohen's d to Common Language Effect Size", "topics": [ "cles.to.d", "d.to.cles" ] }, { "page": "etasq.to.f", "title": "Conversion from Eta-squared to Cohen's f", "topics": [ "etasq.to.f" ] }, { "page": "f.to.etasq", "title": "Conversion between Cohen's f and Eta-squared", "topics": [ "f.to.etasq" ] }, { "page": "f.to.rsq", "title": "Conversion from Cohen's f to R-squared", "topics": [ "f.to.rsq" ] }, { "page": "factorial.contrasts", "title": "Factorial Contrasts", "topics": [ "factorial.contrasts" ] }, { "page": "inflate.sample", "title": "Inflate Sample Size for Attrition", "topics": [ "inflate.sample" ] }, { "page": "joint.probs.2x2", "title": "Helper function to converts joint probabilities to marginal probabilities for the McNemar test applied to paired binary data.", "topics": [ "joint.probs.2x2" ] }, { "page": "marginal.probs.2x2", "title": "Helper function to converts marginal probabilities to joint probabilities for the McNemar test applied to paired binary data.", "topics": [ "marginal.probs.2x2" ] }, { "page": "means.to.d", "title": "Conversion from Means and Standard Deviations to Cohen's d", "topics": [ "means.to.d" ] }, { "page": "means.to.etasq", "title": "Conversion from Means and Standard Deviations to Cohen's f and Eta-squared", "topics": [ "means.to.etasq" ] }, { "page": "power.binom.test", "title": "Power Analysis for the Generic Binomial Test", "topics": [ "power.binom", "power.binom.test" ] }, { "page": "power.chisq.gof", "title": "Power Analysis for Chi-square Goodness-of-Fit or Independence Tests", "topics": [ "power.chisq.gof", "pwrss.chisq.gofit" ] }, { "page": "power.chisq.test", "title": "Statistical Power for the Generic Chi-Square Test", "topics": [ "power.chisq", "power.chisq.test" ] }, { "page": "power.exact.fisher", "title": "Power Analysis for Fisher's Exact Test (Independent Proportions)", "topics": [ "power.exact.fisher", "power.exact.twoprops.fisher" ] }, { "page": "power.exact.mcnemar", "title": "Power Analysis for McNemar's Exact Test (Paired Proportions)", "topics": [ "power.exact.mcnemar", "power.exact.twoprops.mcnemar" ] }, { "page": "power.exact.onecor", "title": "Power Analysis for One-Sample Correlation (Exact)", "topics": [ "power.exact.onecor" ] }, { "page": "power.exact.oneprop", "title": "Power Analysis for the Test of One Proportion (Exact Method)", "topics": [ "power.exact.oneprop" ] }, { "page": "power.exact.twoprops", "title": "Power Analysis for Testing Difference Between Two Proportions (Exact Method)", "topics": [ "power.exact.twoprop", "power.exact.twoprops" ] }, { "page": "power.f.ancova", "title": "Power Analysis for One-, Two-, Three-Way ANOVA/ANCOVA Using Effect Size (F-Test)", "topics": [ "power.f.ancova", "pwrss.f.ancova" ] }, { "page": "power.f.ancova.keppel", "title": "Power Analysis for One-Way ANOVA/ANCOVA Using Means and Standard Deviations (F test)", "topics": [ "power.f.ancova.keppel" ] }, { "page": "power.f.ancova.shieh", "title": "Power Analysis for One-, Two-, Three-Way ANCOVA Using Means, Standard Deviations, and (Optionally) Contrasts (F test)", "topics": [ "power.f.ancova.shieh" ] }, { "page": "power.f.mixed.anova", "title": "Power Analysis for Mixed-Effects Analysis of Variance (F-Test)", "topics": [ "power.f.mixed.anova", "pwrss.f.rmanova" ] }, { "page": "power.f.regression", "title": "Power Analysis for Linear Regression: R-squared or R-squared Change (F-Test)", "topics": [ "power.f.reg", "power.f.regression", "pwrss.f.reg", "pwrss.f.regression" ] }, { "page": "power.f.test", "title": "Statistical Power for the Generic F-Test", "topics": [ "power.f", "power.f.test" ] }, { "page": "power.lp.test", "title": "Statistical Power for the Lambda-Prime Distribution", "topics": [ "power.lp", "power.lp.test" ] }, { "page": "power.np.wilcoxon", "title": "Power Analysis for Non-parametric Rank-Based Tests (One-Sample, Independent, and Paired Designs)", "topics": [ "power.np.wilcox", "power.np.wilcoxon", "pwrss.np.2groups", "pwrss.np.2means" ] }, { "page": "power.t.contrast", "title": "Power Analysis for One-, Two-, Three-Way ANCOVA Contrasts and Multiple Comparisons (T-Tests)", "topics": [ "power.t.contrast", "pwrss.t.contrast" ] }, { "page": "power.t.contrasts", "title": "Power Analysis for One-, Two-, Three-Way ANCOVA Contrasts and Multiple Comparisons (T-Tests)", "topics": [ "power.t.contrasts", "pwrss.t.contrasts" ] }, { "page": "power.t.regression", "title": "Power Analysis for Linear Regression: Single Coefficient (T-Test)", "topics": [ "power.t.reg", "power.t.regression", "pwrss.t.reg", "pwrss.t.regression", "pwrss.z.reg", "pwrss.z.regression" ] }, { "page": "power.t.student", "title": "Power Analysis for Student's t-Test", "topics": [ "power.t.student", "pwrss.t.2means", "pwrss.t.mean", "pwrss.z.2means", "pwrss.z.mean" ] }, { "page": "power.t.test", "title": "Statistical Power for the Generic t-Test", "topics": [ "power.t", "power.t.test" ] }, { "page": "power.t.welch", "title": "Power Analysis for Welch's t-Test", "topics": [ "power.t.welch" ] }, { "page": "power.z.logistic", "title": "Power Analysis for Logistic Regression Coefficient (Wald's Z-Test)", "topics": [ "power.z.logistic", "power.z.logreg", "pwrss.z.logistic", "pwrss.z.logreg" ] }, { "page": "power.z.mediation", "title": "Power Analysis for Indirect Effects in a Mediation Model (Z, Joint, and Monte Carlo Tests)", "topics": [ "power.z.med", "power.z.mediation", "pwrss.z.med", "pwrss.z.mediation" ] }, { "page": "power.z.onecor", "title": "Power Analysis for One-Sample Correlation", "topics": [ "power.z.onecor", "pwrss.z.cor", "pwrss.z.corr" ] }, { "page": "power.z.oneprop", "title": "Power Analysis for the Test of One Proportion (Normal Approximation Method)", "topics": [ "power.z.oneprop", "pwrss.z.prop" ] }, { "page": "power.z.poisson", "title": "Power Analysis for Poisson Regression Coefficient (Wald's z Test)", "topics": [ "power.z.poisreg", "power.z.poisson", "pwrss.z.poisreg", "pwrss.z.poisson" ] }, { "page": "power.z.test", "title": "Statistical Power for the Generic z-Test", "topics": [ "power.z", "power.z.test" ] }, { "page": "power.z.twocors", "title": "Power Analysis for Independent Correlations", "topics": [ "power.z.twocor", "power.z.twocors", "pwrss.z.2corr", "pwrss.z.2corrs" ] }, { "page": "power.z.twocors.steiger", "title": "Power Analysis for Dependent Correlations (Steiger's Z-Test)", "topics": [ "power.z.steiger", "power.z.twocors.steiger" ] }, { "page": "power.z.twoprops", "title": "Power Analysis for Testing Difference Between Two Proportions (Normal Approximation Method)", "topics": [ "power.z.twoprop", "power.z.twoprops", "pwrss.z.2prop", "pwrss.z.2props" ] }, { "page": "probs.to.h", "title": "Conversion from Probability Difference to Cohen's h", "topics": [ "probs.to.h" ] }, { "page": "probs.to.w", "title": "Conversion from Probabilities to Cohen's w", "topics": [ "probs.to.w" ] }, { "page": "q.to.cors", "title": "Conversion from a Cohen's q to a correlation difference", "topics": [ "q.to.cors" ] }, { "page": "rsq.to.f", "title": "Conversion from R-squared to Cohen's f", "topics": [ "rsq.to.f" ] }, { "page": "z.to.cor", "title": "Conversion from a z-value to a correlation (inverse Fisher's z-transformation)", "topics": [ "z.to.cor" ] } ], "_readme": "https://github.com/metinbulus/pwrss/raw/HEAD/README.md", "_rundeps": [], "_vignettes": [ { "source": "examples.Rmd", "filename": "examples.html", "title": "Practical Power Analysis in R", "author": "Metin Bulus & Sebastian Jentschke", "engine": "knitr::rmarkdown", "headings": [ "Generic", "T-Test", "Post-Hoc", "User-Defined Design", "Z-Test", "User Defined Design", "F-Test", "Chi-square Test", "Post-Hoc 1", "Post-Hoc 2", "Binomial Test", "User-Defined Designs", "Error Plots", "Means (T-Test)", "Independent Samples T-Test", "Parametric", "Robust Parametric", "Non-Parametric", "Non-Inferiority", "Superiority", "Equivalence", "Minimum Effect", "Paired Samples T-Test", "Parametric", "Non-parametric", "Non-inferiority", "One-Sample T-Test", "Parametric", "Practically Greater", "Minimal Effect", "Proportions (Z-Test)", "One-Sample", "Approximate", "Exact (Binomial)", "Independent Samples", "Exact (Fisher)", "Non-inferiority", "Superiority Test", "Equivalence", "Paired Samples", "Approximate", "Exact (McNemar)", "Correlations (Z-Test)", "One Common Index", "No Common Index", "Regression: Linear (F- and T-Test)", "Omnibus F-Test", "$R^2 > 0$", "$R^2$ > Margin", "$\\Delta R^2$ > 0", "$\\Delta R^2$ > Margin", "Single Coefficient (T-Test)", "Standardized Input", "Unstandardized Input", "Regression: Logistic (Wald's Z-Test)", "Probability Specification", "Odds Ratio Specification", "Regression Coefficient", "Change Distribution", "Regression: Poisson (Wald's Z-Test)", "Rate Ratio Specification", "Regression: Mediation (Z-Test)", "Continuous Predictor", "Binary Predictor", "Joint and Monte Carlo", "Covariate Adjustment", "ANOVA (F-Test)", "Effect Size as Input", "One-way", "Two-way", "Three-way", "Practical Effects", "Means and SDs as Input", "ANOVA: Mixed-Effects (F-Test)", "Group Effect (Between)", "Time Effect (Within)", "Group x Time Interaction", "Adjusted Eta-squared", "ANCOVA (F-Test)", "Keppel Procedure", "Shieh Procedure", "Planned Contrasts (T-Test)", "Dummy Coding", "Helmert Coding", "Polynomial Coding", "Custom Contrasts", "Independence (Chi-square Test)", "Vector of k Cells", "Contingency Table: 2 x 2", "Contingency Table: j x k" ], "created": "2025-09-20 16:38:03", "modified": "2026-05-30 21:14:18", "commits": 10 } ], "_score": 6.384567013694885, "_indexed": true, "_nocasepkg": "pwrss", "_universes": [ "metinbulus" ], "_binaries": [ { "r": "4.6.0", "os": "win", "version": "1.2.0", "date": "2026-05-29T13:02:41.000Z", "commit": "ce8f7b6fe74a695835ced762bd1c3626f0ecb6c5", "fileid": "7a885bbfc6c2782f61797e188f5edc22294c785610e453b1334b16055343e27d", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/metinbulus/actions/runs/26638591852" }, { "r": "4.7.0", "os": "linux", "version": "1.2.0", "date": "2026-05-30T22:10:36.000Z", "distro": "noble", "commit": "beaa5a6a8e9d602223981cf31c327e7ede68c94c", "fileid": "d48c233f253c1fab1a935c09a9c04d59f0fa709810e6478fe00d5c4b9b6393e1", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/metinbulus/actions/runs/26696025486" }, { "r": "4.6.0", "os": "linux", "version": "1.2.0", "date": "2026-05-30T22:09:30.000Z", "distro": "noble", "commit": "beaa5a6a8e9d602223981cf31c327e7ede68c94c", "fileid": "7b68a092a8f7297dab43e17c7c9dcf870589a9ea3847a2aab60f4b96cd9a5ad7", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/metinbulus/actions/runs/26696025486" }, { "r": "4.5.3", "os": "mac", "version": "1.2.0", "date": "2026-05-30T22:09:07.000Z", "commit": "beaa5a6a8e9d602223981cf31c327e7ede68c94c", "fileid": "6da7daf82e5b7d9f4fea70a559dcdc175ae535d8455d4b6004afd938eb81c118", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/metinbulus/actions/runs/26696025486" }, { "r": "4.6.0", "os": "mac", "version": "1.2.0", "date": "2026-05-30T22:09:23.000Z", "commit": "beaa5a6a8e9d602223981cf31c327e7ede68c94c", "fileid": "4ef608ad318bec01ff5dd671abbe1b6a0c8177f94a99a30da5197beaf3aa7a53", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/metinbulus/actions/runs/26696025486" }, { "r": "4.6.0", "os": "wasm", "version": "1.2.0", "date": "2026-05-30T22:09:18.000Z", "commit": "beaa5a6a8e9d602223981cf31c327e7ede68c94c", "fileid": "74f7630bb610b1f19c4b46b65c8a87adfaab2918c8c5fb55235d68fbf7d9c02e", "status": "success", "buildurl": "https://github.com/r-universe/metinbulus/actions/runs/26696025486" }, { "r": "4.7.0", "os": "win", "version": "1.2.0", "date": "2026-05-30T22:08:47.000Z", "commit": "beaa5a6a8e9d602223981cf31c327e7ede68c94c", "fileid": "8b71e6d4dcfa2e46c9c0ca5474a68d436c8c67e9808bf7201a681db876bca819", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/metinbulus/actions/runs/26696025486" }, { "r": "4.5.3", "os": "win", "version": "1.2.0", "date": "2026-05-30T22:08:50.000Z", "commit": "beaa5a6a8e9d602223981cf31c327e7ede68c94c", "fileid": "f507c70f6348ee79cd337a05c101c4da17875625b576edb50a28fc4f7d070c04", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/metinbulus/actions/runs/26696025486" } ] }