Access and Analysis of Brazilian CNEFE Address Data R package cnefetools version 0.2.5 Download, cache and read municipality-level address data from the Cadastro Nacional de Enderecos para Fins Estatisticos (CNEFE) of the 2022 Brazilian Census, published by the Instituto Brasileiro de Geografia e Estatistica (IBGE) <https://ftp.ibge.gov.br/Cadastro_Nacional_de_Enderecos_para_Fins_Estatisticos/>. Beyond data access, provides spatial aggregation of addresses, computation of land-use mix indices, and dasymetric interpolation of census tract variables using CNEFE dwelling points as ancillary data. Results can be produced on 'H3' hexagonal grids or user-supplied polygons, and heavy operations leverage a 'DuckDB' backend with extensions for fast, in-process execution. Software Depends: R (>= 4.1.0) Imports: arrow, dplyr, sf, geobr, lifecycle, rlang, h3jsr, tidyr, DBI, duckdb, duckspatial, cli (>= 3.6.0), checkmate, fs, httr2, piggyback Suggests: ggplot2, kableExtra, knitr, leafsync, mapview, odbr, rmarkdown, scales, testthat (>= 3.0.0), zip Jorge Ubirajara Pedreira Junior <jorge.ubirajara@ufba.br> Comprehensive R Archive Network (CRAN) Jorge Ubirajara Pedreira Junior [aut, cre, cph] (ORCID: <https://orcid.org/0000-0002-8243-5395>), Bruno Mioto [aut], Kaio Cunha Pedreira [ctb] MIT + file LICENSE (https://CRAN.R-project.org/package=cnefetools/LICENSE) 2026-04-03 application/tgz https://CRAN.R-project.org/package=cnefetools doi:10.32614/CRAN.package.cnefetools