dewlap_neural_nested: Habitat classification with neural networks per island
In rscherrer/sagreicolor:

This function applies the neural network analysis on each island separately

1 2	dewlap_neural_nested(specdata, vars, nRepet = 1000, seed = 42, plotit = F)

`specdata`	A data frame containing at least columns for the dependent variables, as well as a column "habitat".
`vars`	A character or integer vector. The names, or indices, of the dependent variables in `specdata`.
`nRepet`	The number of neural networks to train (same number for empirical and permuted datasets).
`seed`	Seed for random number generators
`plotit`	Whether to plot the success or not