calcWHPT_AB {biotic}

Calculate abundance-weighted WHPT indices

Description

Calculates WHPT abundance-weighted ASPT and N-taxa indices for invertebrate samples.

Usage

calcWHPT_AB(df, type = "num")

Arguments

df

A dataframe containing list of taxa in first column, followed by columns of abundances with sample names in header row.

type

Indicates format of data. Options are "num" for numeric data, "log" for integer log abundance categories (1-5) or "alpha" for alphabetic abundance categories (A-E). Default value is "num".

Value

A data frame consisting of columns of index values with samples in rows.

Examples

# calculate the WHPT abundance-weighted indices for the River Almond dataset
# data are numeric abundances, so type is "num" (can be omitted)

calcWHPT_AB(almond, "num")