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Import and Clean Site Data for Spatial Analysis

Source: R/SiteData.R
SiteData.Rd

This function reads site location data, either provided as a data frame or loaded from the included package dataset, cleans it, and converts it into a simple features (SF) object for spatial analysis.

Usage

SiteData(x = NULL)

Arguments

x

A data frame containing site location data with columns for station IDs, elevation, site names, and coordinates. If `NULL`, the function will load the `SiteLocations` dataset from the package.

Value

A simple features (SF) object with site data including coordinates and spatial reference.

Details

The `SiteData` function performs the following steps:

  • If no input data is provided (`x = NULL`), it loads the `SiteLocations` dataset from the `TNCDangermond` package.

  • Converts `station_id_dendra`, `elev`, and `SiteName` columns to character type.

  • Cleans up the `station_id_dendra` and `elev` columns, handling missing values and inconsistencies.

  • Transforms `SiteName` to replace spaces with underscores.

  • Filters rows where `SiteName` starts with "Dangermond" and excludes those containing "Weather".

  • Converts the cleaned data to an SF object with coordinates defined by `lon` and `lat`, and sets the coordinate reference system (CRS) to EPSG:4269.