I_total: Total opportunity for selection

In MorphoFun/psa: Phenotypic Selection Analysis tools

Description

Calculation of the total opportunity for selection based on the variance in relative fitness: var(W/mean(W)) (Crow 1958, Arnold and Wade 1984, Brodie et al. 1995), where W = absolute fitness.

Usage

I_total(fitness, type = c("W", "w"))

Arguments

fitness	Vector of numeric or integer values that represent the fitness metric or proxy.
type	Type of fitness metric or proxy, either absolute fitness ("W") or relative fitness ("w").

Value

I_total returns a single numeric value.

References

Arnold SJ, Wade MJ. 1984. On the measurement of natural and sexual selection applications. Evolution 38(4): 720-734. http://www.jstor.org/stable/2408384?seq=1#page_scan_tab_contents

Brodie ED III, Moore AJ, Janzen FJ. 1995. Visualizing and quantifying natural selection. TREE 10(8): 313-318. http://www.sciencedirect.com/science/article/pii/S016953470089117X

Crow JF. 1958. Some possibilities for measuring selection intensities in man. Human Biology 30: 1-13. http://www.jstor.org/stable/41449168?seq=1#page_scan_tab_contents

MorphoFun/psa documentation built on Nov. 10, 2021, 7:01 a.m.