meters_to_decdeg

<code>meters_to_decdeg</code> converts from meters to degrees at a specified
position on the globe. The use case this function was developed for was to
calculate occurence point uncertainty values, which are usually reported in
meters, as degrees.
The formula for converting from meters to decimal degrees is in part
based on information from the ESRI ArcUser magazine at this site
<a href="https://www.esri.com/news/arcuser/0400/wdside.html">https://www.esri.com/news/arcuser/0400/wdside.html</a>

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<https://www.esri.com/news/arcuser/0400/wdside.html>
(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.

Samuel Chang

occUncertain

Addressing Occurrence Point Uncertainty When Calculating Spatial
Metrics

Samuel V. Chang Triguero

Matthew E. Aiello-Lammens

meters_to_decdeg function

<dl><dt>occs_df</dt>
<dd>A <code>data.frame</code> of occurrence locations that incudes
at least these three columns - latitude, longitude, and a distance
in meters to be converted to decimal degrees.</dd>
<dt>lat_col</dt>
<dd>Name of column of latitude values. Caps sensitive.</dd>
<dt>lon_col</dt>
<dd>Name of column of longitude values. Caps sensitive.</dd>
<dt>distance</dt>
<dd>Name of column of distance values, in meters. Caps sensitive.</dd>
<dt>na_action</dt>
<dd>Enact distance options for NA values. Caps sensitive</dd></dl>

Arguments

<code>meters_to_decdeg</code> converts from meters to degrees at a specified
position on the globe. The use case this function was developed for was to
calculate occurence point uncertainty values, which are usually reported in
meters, as degrees.
The formula for converting from meters to decimal degrees is in part
based on information from the ESRI ArcUser magazine at this site
<a href='https://www.esri.com/news/arcuser/0400/wdside.html'>https://www.esri.com/news/arcuser/0400/wdside.html</a>

Convert from meters to degrees correcting for global position — meters_to_decdeg

<dl>

<dt>occs_df</dt>
<dd>A <code>data.frame</code> of occurrence locations that incudes
at least these three columns - latitude, longitude, and a distance
in meters to be converted to decimal degrees.</dd>


<dt>lat_col</dt>
<dd>Name of column of latitude values. Caps sensitive.</dd>


<dt>lon_col</dt>
<dd>Name of column of longitude values. Caps sensitive.</dd>


<dt>distance</dt>
<dd>Name of column of distance values, in meters. Caps sensitive.</dd>


<dt>na_action</dt>
<dd>Enact distance options for NA values. Caps sensitive</dd>

</dl>

meters_to_decdeg: Convert from meters to degrees correcting for global position

Description

Usage

Value

Arguments