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cff-version: 1.2.0
message: 'To cite package "NRMSampling" in publications use:'
type: software
license: GPL-3.0-or-later
title: 'NRMSampling: Sampling Design and Estimation Methods for Natural Resource Management'
version: 0.2.2
doi: 10.32614/CRAN.package.NRMSampling
abstract: Provides functions for probability and non-probability sampling design,
  sample selection, and population estimation tailored to natural resource management.
  Probability methods include simple random sampling, stratified sampling, systematic
  sampling, cluster sampling, and probability-proportional-to-size sampling. Non-probability
  methods include convenience, judgement-based, and quota sampling. Estimation functions
  cover means, totals, ratio estimators, regression estimators, and the unequal-probability
  estimator of Horvitz and Thompson (1952, <https://doi.org/10.2307/2280784>) for
  unequal-probability designs. Utilities support biomass, soil-loss, and carbon-stock
  estimation from field plots. Spatial extensions provide random, systematic, stratified,
  and raster-weighted sampling within geographic polygons using the 'sf' and 'terra'
  packages, with extraction of remote-sensing covariates at sample locations. Applications
  include forest inventory, soil erosion monitoring, watershed studies, and ecological
  field surveys.
authors:
- family-names: Islam
  given-names: Sadikul
  email: sadikul.islamiasri@gmail.com
  orcid: https://orcid.org/0000-0003-2924-7122
repository: https://cran.r-universe.dev
commit: e32b325c78f7d48a7db2b795077e2497aa6bfe9b
date-released: '2026-04-22'
contact:
- family-names: Islam
  given-names: Sadikul
  email: sadikul.islamiasri@gmail.com
  orcid: https://orcid.org/0000-0003-2924-7122