The hardware and bandwidth for this mirror is donated by dogado GmbH, the Webhosting and Full Service-Cloud Provider. Check out our Wordpress Tutorial.
If you wish to report a bug, or if you are interested in having us mirror your free-software or open-source project, please feel free to contact us at mirror[@]dogado.de.

magentabook 0.1.0

• First release. UK HM Treasury Magenta Book policy-evaluation primitives.
• Provenance is explicit: bundled rubrics carry honest source metadata distinguishing direct quotations from researcher synthesis. ICC reference values use a value_source flag ("table_quote" vs "central_estimate").
• DOIs added to every @references block where available. Framework functions (mb_evaluation_plan, mb_questions, mb_counterfactual, mb_theory_of_change, etc.) cite the Magenta Book (2020) chapters they correspond to.
• inst/CITATION extended with footer pointing to the underlying primary sources for the methods implemented (Sherman 1997, Cohen 1988, Hussey-Hughes 2007, Hemming 2015, Hedges & Hedberg 2007, Drummond 2015, Cameron & Miller 2015, Stuart 2010).
• Cross-validated against canonical reference implementations:
  • pwr for two-sample power, sample size, MDE, and proportion power (within ~3 percentage points; test-pwr-equivalence.R).
  • sandwich for mb_did_2x2 cluster-robust SEs (CR1 / HC1 to within 1e-6; test-sandwich-equivalence.R).
  • swCRTdesign for mb_stepped_wedge (closed-form Hemming approximation tracks the exact Hussey-Hughes variance to within roughly 0.5x to 2x for typical UK designs; test-swcrt-equivalence.R). For decision-grade sample-size work prefer swCRTdesign::swPwr.
  • BCEA for mb_icer and mb_ceac (floating-point agreement; test-bcea-equivalence.R).
  • cobalt for mb_balance_table SMD on balanced samples (within 1e-8; test-cobalt-equivalence.R).
• mb_stepped_wedge formula argument removed in favour of the single Hemming/Woertman closed-form approximation, which is documented as approximate (vs the exact Hussey-Hughes variance computed by swCRTdesign). The earlier formula = "hussey_hughes" branch was researcher-derived and not externally verifiable; it has been removed before the package leaves disk.
• mb_balance_table() added for pre-treatment balance checks (mean, SD, standardised mean difference, Welch t / chi-squared p, imbalance flag at user-controlled threshold).
• mb_stepped_wedge(formula = c("hemming", "hussey_hughes")): choose between the Woertman/Hemming closed-form correction (default) and the Hussey-Hughes (2007) closed form. Both assume balanced design, complete data, no time-by-treatment interaction; for non-standard designs use swCRTdesign or clusterPower.
• quiet = FALSE argument added to mb_did_2x2(), mb_its(), and mb_event_study(). The print method now appends a one-line reminder that the estimator is canonical and points to specialist packages (fixest, did, sandwich) for staggered adoption, autocorrelation, or production work. Set quiet = TRUE to suppress.
• cluster argument added to mb_event_study(), mirroring mb_did_2x2(): cluster-robust SEs via CR1 with the Stata-style finite-sample correction (G/(G-1)) * (N-1)/(N-K).
• mb_power() @details now states the normal-approximation assumption explicitly and points to pwr::pwr.t.test for small N (where the noncentral-t form differs by ~1-2 percentage points).
• 35 exported functions across 10 families: theory of change, evaluation planning, power and design, Maryland Scientific Methods Scale, Magenta Book confidence rating, lightweight estimators (difference-in-differences, interrupted time series, event study), cost-effectiveness analysis (CEA, ICER, CEAC, INB, QALY, DALY), realist / theory-based scaffolding, reporting, lookups.
• Bundled rubric and reference tables in inst/extdata/ covering the five-level Maryland SMS rubric, the three-level magentabook confidence rubric (synthesised across What Works Centre traditions), reference intra-class correlation values across UK policy domains (education, health, employment, local government, criminal justice, housing) tagged with a value_source flag distinguishing direct table quotations from researcher synthesis, and the canonical Magenta Book evaluation question taxonomy. Vintage and provenance metadata accessible via mb_data_versions().
• Provenance is explicit: see the README “Bundled rubrics: provenance” section for what is verbatim from primary sources and what is magentabook synthesis.
• Cross-validated against canonical reference implementations (when installed): power and sample size vs pwr, cluster-robust SEs vs sandwich. See tests/testthat/test-pwr-equivalence.R and tests/testthat/test-sandwich-equivalence.R.
• Pure computation: no network calls, no API keys.
• Designed as the evaluation companion to the appraisal package greenbook. See the vignette Cost-effectiveness with magentabook and greenbook for an end-to-end worked example.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.