imedR 0.3.3

imedR is a manuscript-grade, guardrail-first R package for the Indian Microplastics Evidence Database (IMED).

Frozen v1.0 snapshot represented in this build

• Studies: 97
• Sites: 217
• Samples: 293
• Measurements: 313
• Comparability classes: 17

The bundled analytical snapshot is generated directly from IMED_v1.0_FROZEN.xlsx; workflow and extraction-log sheets are excluded.

Capabilities

• relational/scientific validation;
• measurement enrichment with IMED comparability metadata;
• guarded analysis-set construction;
• explicit HOLD handling;
• descriptive and conservative inferential statistics;
• meta-analysis eligibility checks;
• guarded random-effects raw-mean and prevalence meta-analysis helpers;
• adversarial guardrail tests and known-answer statistical tests;
• size-window diagnostics and evidence-synthesis sensitivity summaries;
• leave-one-study-out influence analysis and guarded meta-regression;
• forest/funnel diagnostics and a consolidated validation report;
• publication-oriented abundance, composition and QA/QC figures;
• coordinate-class-aware mapping;
• missingness and evidence-profile diagnostics;
• primary citation and field-level provenance retrieval;
• manuscript-oriented tables and result tidying;
• high-resolution figure export.

Core rule

Validate -> define a scientifically compatible analysis set -> analyse -> visualize -> retrieve provenance/citations.

The package is designed to stop analyses that look computationally possible but are scientifically indefensible.

Validation status

The automated test suite passes with no failures, and the IMED v1.0 relational integrity checks report no ERROR-level failures. Version 0.3.3 was accepted by CRAN on 3 November 2026 after passing CRAN's incoming checks.

Release-normalization note (v0.3.1)

The bundled frozen IMED v1.0 source snapshot is preserved. At load time, imedR removes wholly empty export rows and disambiguates the second genuine ST0064 size-method record from SZ0064-01 to runtime ID SZ0064-02. This is an identifier-only normalization; no scientific value is altered.

Installation

From CRAN:

install.packages("imedR")
library(imedR)
imed_version()

Development version from GitHub:

# install.packages("remotes")
# remotes::install_github("ChanikyaNaiduCN7/imedR")
install.packages("imedR", repos = c('https://chanikyanaiducn7.r-universe.dev', 'https://cloud.r-project.org'))

Optional packages for mapping and meta-analysis (sf, metafor) are installed only if you use those functions.

Citation

Naidu C (2026). imedR: Guarded Evidence Synthesis for the Indian Microplastics Evidence Database. R package version 0.3.3. https://doi.org/10.5281/zenodo.23236914

Please also cite IMED/IMEA v1.0 (https://doi.org/10.5281/zenodo.23180568) and the original primary publications for any study-specific claim.

License

Package code: MIT (see LICENSE). The IMED/IMEA data release is licensed separately (see LICENSE_AND_REUSE.md in the data release). Third-party source rights remain with the original rights holders.

Release limitations

IMED v1.0 did not complete a second-review round, and no second-review PASS is claimed. See RELEASE_NOTES_v1.0.md in the data release.