dms_to_decimal

Converts coordinates expressed in degrees, minutes and seconds (DMS) or degrees and minutes (DM)
format to decimal degrees. By default, coordinates are assumed to be in the southern hemisphere
(negative latitudes). The function can automatically correct common errors such as minutes or
seconds greater than 60.

Specialized toolkit for processing biological and fisheries data from Peru's anchovy (Engraulis ringens) fishery. Provides functions to analyze fishing logbooks, calculate biological indicators (length-weight relationships, juvenile percentages), generate spatial fishing indicators, and visualize regulatory measures from Peru's Ministry of Production. Features automated data processing from multiple file formats, coordinate validation, spatial analysis of fishing zones, and tools for analyzing fishing closure announcements and regulatory compliance. Includes built-in datasets of Peruvian coastal coordinates and parallel lines for analyzing fishing activities within regulatory zones.

Hans Ttito

Tivy

Toolkit for Investigation and Visualization of Young Anchovies

dms_to_decimal function

<dl><dt>coordinates</dt>
<dd>Character vector. Each element should be in formats such as:
"D M S", "D M", "17 26 S"</dd>
<dt>hemisphere</dt>
<dd>Character indicating hemisphere when not specified in the coordinate.
One of "N", "S", "E", "W" or "O". "S" and "W"/"O" generate negative values.</dd>
<dt>correct_errors</dt>
<dd>Logical. If TRUE, automatically corrects out-of-range values.</dd></dl>

Arguments

Convert latitude or longitude to decimal degrees — dms_to_decimal

<dl>

<dt>coordinates</dt>
<dd>Character vector. Each element should be in formats such as:
"D M S", "D M", "17 26 S"</dd>


<dt>hemisphere</dt>
<dd>Character indicating hemisphere when not specified in the coordinate.
One of "N", "S", "E", "W" or "O". "S" and "W"/"O" generate negative values.</dd>


<dt>correct_errors</dt>
<dd>Logical. If TRUE, automatically corrects out-of-range values.</dd>

</dl>

dms_to_decimal: Convert latitude or longitude to decimal degrees

Description

Usage

Value

Arguments

Examples