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occUncertain (version 0.1.0)

Addressing Occurrence Point Uncertainty When Calculating Spatial Metrics

Description

Repeatable processing of species occurrence datasets that makes it easier to propagate georeferencing imprecisions and data input mistakes to downstream analyses, allowing analysts to assess the impacts of these imprecisions in quantifying range of occurrence (EOO) or area of occupancy (AOO) . Users can use the software to: (a) change each coordinate record's uncertainty from meters to decimal degrees, The formula for converting from meters to decimal degrees is in part based on information from the ESRI ArcUser magazine "Measuring in Arc-Seconds" at this site (b) deal with records that don't have uncertainty values in multiple ways, (c) create a new random location for each occurrence using a uniform distribution with a defined interval within the occurrence location uncertainty, and (d) use repetitions to quantify EOO and AOO with attribute uncertainty.

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Version

Install

install.packages('occUncertain')

Monthly Downloads

44

Version

0.1.0

License

GPL-3

Maintainer

Samuel Chang

Last Published

January 20th, 2023

Functions in occUncertain (0.1.0)

random_geo_range

Random geographic occurrences and preliminary conservation status assessment following IUCN Criterion B. Species area of occupancy (AOO) and extent of occurrence (EOO), from latitude and longitude coordinates accounting uncertainty values
Leopardus_wiedii_gbif

Occurence data for Leopardus wiedii acquired from GBIF
generate_occ_uncertain

Random latitude and longitude coordinates accounting uncertainty values
meters_to_decdeg

Convert from meters to degrees correcting for global position