elassens {demogR} | R Documentation |
Calculates the partial derivatives of the eigenvalue elasticities of a demographic projection matrix.
elassens(A, k, l)
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 |
See Caswell (2001) section 9.7.1.
A matrix of class "leslie.matrix".
Caswell, H. 2001. Matrix population models: Construction, analysis, and interpretation. 2nd ed. Sunderland, MA: Sinauer.
secder
, leslie.matrix
,
eigen.analysis
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)