This is an R library for modelling snails as described by Raup's 1966 paper.
For the purposes of simplicity, we are assuming that you are measuring the centroid of the snail shell, rather than a point on the surface of the shell. From the point of view of the formulation used by Raup that means that y0 and rc are both zero. Note that by making this simplification we can ignore the appeture shape entirely.
library(devtools)
install_github("rsnailfitter",username="klapaukh")
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