Dear Luis,
I think the bootstrap of levins niche breadth index can be attained via the
following R code.
Please also take a look at the comments provided.
dat <- c(15, 456, 32, 21, 94)
### Define a function to calculate Levin's niche breadth
calc_levins <- function(x){
pi <- x/sum(x)
res
Dear All
I have been working on the R fully during very few time and I am really
novice, so my question may look fool to many of you, but I need to do it.
I have calculated Levin´s index (which is 1/sum(pi)Ë2 where pi=available
source i/sum of all sources) for some data and I have been suggeste
