| ecospat.nicheNBmean {ecospat} | R Documentation |
Niche position and niche breadth)
Description
ecospat.nicheNBmean calculates the weighted mean niche breadth accross several axes from a nichePOSNB object.
Usage
ecospat.nicheNBmean(POSNB,w)
Arguments
POSNB |
an object created by the function ecospat.nichePOSNB |
w |
a vector with a weight for each environmental axes. |
Details
The function calculates the weighted mean niche breadth. The weights w are rescaled so that their sum equals 1.
Value
The function returns a 1 column dataframe with the weighted mean niche breadth for each taxa.
Author(s)
Lucie Malard lucie.malard@unil.ch and Olivier Broennimann olivier.broennimann@unil.ch
References
L.A. Malard, H.K. Mod, N. Guex, O. Broennimann, E. Yashiro, E. Lara, E.D.A. Mitchell, H. Niculita-Hirzel & A. Guisan. The ecological niche of soil bacterial, archaeal, fungal and protist communities along environmental gradients in the Alps. 2021. Accepted in Soil Biology and Biochemistry.
Examples
data(ecospat.testNichePOSNB)
df<-ecospat.testNichePOSNB
# 1 axes
POSNB<-ecospat.nichePOSNB(df,colvar=c(2),colfreq = 6:17)
# 2 axes
POSNB<-ecospat.nichePOSNB(df,colvar=c(2:3),colfreq = 6:17)
ecospat.nicheNBmean(POSNB,w=c(2,1))
# 4 axes
POSNB<-ecospat.nichePOSNB(df,colvar=c(2:5),colfreq = 6:17)
ecospat.nicheNBmean(POSNB,w=c(1,0.8,0.2,0.1))