settlerRecruitSlopeCorrection: Correction for slope of settler-recruit relationship
In dmkaplan2000/ConnMatTools: Tools for Working with Connectivity Data

Description Usage Arguments Value Author(s) References See Also

This function corrects the slope of the settler-recruit curve so that the collapse point of the spatially-explicit population model corresponding to the connectivity matrix agrees with that of the global non-spatially-explicit model. Uses the method in White (2010).

settlerRecruitSlopeCorrection(
  conn.mat,
  slope = 1,
  natural.LEP = 1,
  critical.FLEP = 0.35,
  use.arpack = TRUE
)

`conn.mat`	a square connectivity matrix.
`slope`	slope at the origin of the settler-recruit relationship. Only interesting to fix this argument if it is a vector of length = `dim(conn.mat)[2]` (i.e., if the slope varies among sites and one wants to globally scale all slopes so that the collapse point matches the global collapse point).
`natural.LEP`	value of lifetime-egg-production (LEP), also known as eggs-per-recruit, in the absence of fishing. Can be a vector of length = `dim(conn.mat)[2]`. Defaults to 1.
`critical.FLEP`	Fraction of natural.LEP at which collapse occurs. Defaults to 0.35.
`use.arpack`	Boolean determining if calculation is to be done with `arpack` function from the igraph package. This is much quicker for large matrices, but requires igraph. Defaults to TRUE, but will use eigen instead if igraph is not found.