elassens {demogR}

elassens

Description

Calculates the partial derivatives of the eigenvalue elasticities of a demographic projection matrix.

Usage

elassens(A, k, l)

Arguments

A

a demographic projection matrix

k

row index of the transition that the partial is calculated with respect to

l

column index of the transition that the partial is calculated with respect to

Details

See Caswell (2001) section 9.7.1.

Value

A matrix of class "leslie.matrix".

References

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

See Also

secder, leslie.matrix, eigen.analysis

Examples

data(goodman)
mlt <- with(goodman, life.table(x=age, nDx=mad.nDx, nKx=mad.nKx))
mx <- goodman$mad.bx/goodman$mad.nKx

##  make the Leslie matrix
mad <- leslie.matrix(lx=mlt$lx, mx=mx)

## now calculate the sensitivities of the elasticitities with respect
##to infant survival

es21 <- elassens(mad,2,1)