Code and example data to calibrate the niche model of food webs based on allometric relationships

#### READ ME ################################### The code has the following structure # 1. Loading of an artificial dataset of i) predator-prey interactions, ii) body size distribution, iii) hypothetical species presence/absence lists # 2. Definition of functions run for the analysis # 3. Calculation of the observed parameters for the niche model # 4. Inferrence of the parameters for all species in the metaweb ## Name of the parameters of the niche model # n: niche position along the niche axis # c: centroid of the niche # r: range of the niche