rdiversity (version 1.0)

norm_alpha: Normalised alpha (low level diversity component)

Description

Calculates the low-level diversity component necessary for calculating normalised alpha diversity.

Usage

norm_alpha(meta)

Arguments

meta

object of class metacommunity.

Value

Returns an object of class powermean.

Details

Values generated from norm_alpha() may be input into subdiv() and metadiv() to calculate normalised subcommunity/metacommunity alpha diversity.

References

Reeve, R., T. Leinster, C. Cobbold, J. Thompson, N. Brummitt, S. Mitchell, and L. Matthews. 2014. How to partition diversity. arXiv 1404.6520:1<U+2013>9.

Examples

# NOT RUN {
pop <- data.frame(a = c(1,3), b = c(1,1))
row.names(pop) <- paste0("sp", 1:2)
pop <- pop/sum(pop)
meta <- metacommunity(pop)

# Calculate normalised alpha component
norm_alpha(meta)

# }