obsIndexSpatial: Relative observation index (Spatial)

Description Usage Arguments Value

View source: R/observationIndex.R

Description

This function extracts the proportion of visits (or observations) detecting a focal species to all visits (or observations) over space.

Usage

1
obsIndexSpatial(x, focalSp = NULL, visits = TRUE, fs.rm = TRUE, norm = TRUE)

Arguments

x

an object of class ‘SummarizeBirds’.

focalSp

the focal sp to look for

visits

if TRUE (default) the observation index is calculated over number of visits, else uses the number of observations.

fs.rm

if TRUE, assumes that the observations for the focal species are included in 'group' and will remove them

norm

if TRUE, the result is normalized to a 0-1 range

Value

A spatial object


BIRDS documentation built on June 27, 2021, 1:06 a.m.