adjusted_FQI

<code>adjusted_FQI</code> calculates the Adjusted Floristic Quality Index. Adjusted FQI
is found by multiplying 100 by the Native Mean C divided by 10 and then multiplied
by the square root of Native Species Richness over Total Species Richness.

A collection of functions for calculating Floristic Quality
Assessment (FQA) metrics using regional FQA databases that have been
approved or approved with reservations as ecological planning models
by the U.S. Army Corps of Engineers (USACE). For information on FQA
see Spyreas (2019) <doi:10.1002/ecs2.2825>. These databases are stored
in a sister R package, 'fqadata'. Both packages were developed for the
USACE by the U.S. Army Engineer Research and Development Center’s
Environmental Laboratory.

Todd Swannack

fqacalc

Calculate Floristic Quality Assessment Metrics

Iris Foxfoot

U.S. Army Engineer Research and Development Center 

adjusted_FQI function

<dl><dt>x</dt>
<dd>A data frame containing a list of plant species. This data frame
must have one of the following columns: <code>name</code> or <code>acronym</code>. For cover-weighted or
relative functions, this data frame must also have a column called <code>cover</code> containing
cover values and ideally a column containing plot IDs.</dd>
<dt>key</dt>
<dd>A character string representing the column that will be used to join
the input data frame <code>x</code> with the regional FQA database. If a value is not specified, the
default is <code>"name"</code>. <code>"name"</code> and <code>"acronym"</code> are the only acceptable
values for <code>key</code>.</dd>
<dt>db</dt>
<dd>A character string representing the regional FQA database to use. See
<code>db_names</code> for a list of potential values and the <code>fqadata</code> R package
where the databases are hosted.</dd></dl>

Arguments

Calculate Adjusted FQI — adjusted_FQI

<dl>

<dt>x</dt>
<dd>A data frame containing a list of plant species. This data frame
must have one of the following columns: <code>name</code> or <code>acronym</code>. For cover-weighted or
relative functions, this data frame must also have a column called <code>cover</code> containing
cover values and ideally a column containing plot IDs.</dd>


<dt>key</dt>
<dd>A character string representing the column that will be used to join
the input data frame <code>x</code> with the regional FQA database. If a value is not specified, the
default is <code>"name"</code>. <code>"name"</code> and <code>"acronym"</code> are the only acceptable
values for <code>key</code>.</dd>


<dt>db</dt>
<dd>A character string representing the regional FQA database to use. See
<code>db_names</code> for a list of potential values and the <code>fqadata</code> R package
where the databases are hosted.</dd>

</dl>

adjusted_FQI: Calculate Adjusted FQI

Description

Usage

Value

Arguments

Examples