Leslie.pred: Project Leslie matrix
In strandCet: Estimation of Biological Parameters from Stranded Cetaceans

Description Usage Arguments Details Value References See Also

Projects an population vector tmax intervals by pre-multiplication with a Leslie matrix.

1	Leslie.pred(A, no, tmax = 100, pop.sum = FALSE)

`A`	A k * k projection matrix.
`no`	A k * 1 population vector.
`tmax`	Number of time steps to project the vector.
`pop.sum`	Logical: If <e2><80><99>TRUE<e2><80><99>, the age-classes of the projected population are summed, yielding a single total population vector

Takes an initial population vector, no, and pre-multiplies by the demographic projection matrix, A, tmax times. This projection will be tmax*n years into the future, where n is the width of the age-classes in the Leslie matrix, A.

If pop.sum=FALSE (the default), the value will be a k x tmax+1 matrix. The first column of the matrix is no and each subsequent column represents the population structure at time step 1, 2, ..., tmax. If pop.sum=TRUE, the value will be a vector of length tmax+1, where each element of the vector is the total population at time t=0, 1, ..., tmax.

Caswell, H. (2001). Matrix population models: Construction, analysis, and interpretation. 2nd ed. Sunderland, MA: Sinauer.

van Groenendael, J., De Kroon, H., Kalisz, S. and Tuljapurkar. S. (1994). Loop analysis: Evaluating life history pathways in population projection matrices. Ecology 75 (8):2410-2415.

Leslie.matrix eigen.analysis

strandCet documentation built on May 1, 2019, 8:19 p.m.