NWCA16_vegMMI: NWCA16_vegMMI: calculate Vegetation Multi-metric Index

In KateMMiller/wetlandACAD: Package for compiling, querying, summarizing and plotting freshwater wetland data in Acadia NP

NWCA16_vegMMI: calculate Vegetation Multi-metric Index

Description

This function calculates the 4 metrics used to calculate the vegetation multi-metric index (MMI) developed by Miller et al. (2016). Note that to calculate the MMI, the species data must be joined with the Coefficient of Conservatism ranking. This is only implemented for EcoRegion 82 and downloads the CoCs from the Maine Natural Areas Program's website: https://www.maine.gov/dacf/mnap/features/coc.htm. This function is only implemented for ACAD sites and will break if the url hosting the CoC rankings changes.

Usage

NWCA16_vegMMI(export_spp = FALSE)

Arguments

export_spp

Logical. If TRUE, adds a dataframe called veg_spp_cov16 that contains average percent cover of all species recorded at a site to the global environment. If FALSE (default), only returns the final VMMI dataframe.

Value

Data frame with vegetation MMI metrics and ratings

Examples

## Not run: 

# Import ACAD only data and export
NWCA16_import(path = "../data/NWCA16", zip_name = "NWCA2016_data.zip")
vmmi <- NWCA16_vegMMI(export_spp = TRUE)


## End(Not run)

KateMMiller/wetlandACAD documentation built on Dec. 21, 2024, 1:14 a.m.