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eSTZwritR package hexagonal logo

An R package for applying standardized file naming, directory structure, mapping, for empirical Seed Transfer Zones (eSTZs) in the United States.

Overview

The goal of this package is to standardize eSTZ documentation to streamline the sharing of these products among natural resource professionals, and for researchers to be able to collectively utilize the products.

Installation

eSTZwritR is available only on github, with no plans for submission to CRAN. It can be installed using remotes or devtools (or pak etc.) like so:

install.packages('devtools')
devtools::install_github('sagesteppe/eSTZwritR')

It relies on sf which on occasion can be difficult to install. If you have install problems (read them…), but sf is a likely culprit as it requires several external binaries and libraries.

Once installed it can be attached for use like any other package from github or CRAN

library(eSTZwritR)

Usage

eSTZwritR requires only five user-facing functions to implement all data sharing conventions.

Function Purpose Output
regionCoding determine DOI Regions Character string for file naming
dirmakR create Directory Directory, spatial data
mapmakR create Map PDF or png map (for publications)
fieldsmakR ensure fields (columns) are named sf object to local location
orderZones ordering seed zone numbers updated vector data, plot, summary

Documentation

A paper describing the impetus behind the creation of eSTZwritR, and broadly outlining it’s functionality is available here.

This is being revised for a dual-package submission to Applications in Plant Science

A poster on the project for the National Native Seed Conference 2025 is below. It contains all of the proposed conventions, it is also located in the ./man/figures subdirectory, where you can download a high resolution copy and zoom in on it.

Conference poster for National Native Seed Conference 2025 presenting eSTZwritR conventions for documenting empirical seed transfer zones, including file naming standards, directory structure, mapping guidelines, and field naming conventions with visual examples and workflow diagrams
Conference poster for National Native Seed Conference 2025 presenting eSTZwritR conventions for documenting empirical seed transfer zones, including file naming standards, directory structure, mapping guidelines, and field naming conventions with visual examples and workflow diagrams


A vignette showcasing the usage of the package is available here. This vignette includes the images in the ‘Suggestions’ portion of the above poster in the relevant areas so you can get a better idea of specific suggestions (most of which are not included in the text portions of the manuscript.)

Researchers engaged in collecting herbarium samples to document the material they used in developing seed transfer zones may benefit from using BarnebyLives, an R packge to help create herbarium label data. Curators running native seed development projects are sure to find safeHavens useful. safeHavens is an R packge to help create sampling schema for germplasm collections.

Citation

Wieferich, B., Benkendorf, R.C. 2024. eSTZwritR

A bibtex entry for latex users is:

@Misc{wieferich2024estz,
title = {eSTZwritR},
author = {Wieferich, B and Benkendorf R.C.},
year = {2024},
url = {https://github.com/sagesteppe/eSTZwritR},
doi = {10.5281/zenodo.14641975} }

Or use R to display citations:

citation('eSTZwritR')

For complete citation information, see the citation page.