niche_comparison: NICHE COMPARISON
In agarciaEE/NINA: Niche Interaction Network Analyses

niche_comparison

R Documentation

NICHE COMPARISON

Description

Computes different metrics to analyze differences between two niches

Usage

niche_comparison(
  x,
  y,
  centroid.w = F,
  rnd.test = F,
  Z_space = F,
  quantile = 0.75,
  np.type = c("unimodal", "multimodal"),
  np.metric = c("median", "mean", "max"),
  cor = F,
  rep = 100,
  rand = 1,
  alternative = c("greater", "lower")
)

Arguments

`x`	NINA niche object
`y`	NINA niche object
`centroid.w`	logical whether to weight niche overlap by distance to niche centroid
`rnd.test`	Logical to indicate if randomization tests are to be estimated
`Z_space`	lLogical. Whether to compute USE parameters accounting for the environmental space (Z)
`quantile`	If `centroid.w` is TRUE, quantle threshold to filter niche densities. Default is 0.5. See `niche_position`
`np.type`	If `centroid.w` is TRUE, type of centroid to estimate. Default is 'unimodal'. See `niche_position`
`np.metric`	If `centroid.w` is TRUE, statistic method to estimate the niche centroid. Default is 'median'. See `niche_position`
`cor`	Logical whether to use environmentally corrected densites
`rep`	Number of random samples to carry out the statistic tests
`rand`	Directions of the comparisons. 1 performs all tests with argument 'x' as base of all comparisons. 2 uses argument 'y'. Default is 1.
`alternative`	String indicating the alternative hypothesis. Default is "greater".