% A=projection matrix for declining semipalmated sandpiper pop.
% from Hitchcock and Gatto-Trevor, Ecology 78:522-534 (1997).
% Pre-breeding census - classes are 1, 2, and 3+ year-olds.
% The code below A calculates and displays the dominant eigenvalue
% lambda1, the stable distribution w, the vector of reproductive 
% values v, a matrix of eigenvalue senstitivities S, and a matrix
% of eigenvalue elasticities, E.

A=[.02115 .074 .0846; .563 0 0; 0 .563 .563];

[lambdas,lambda1,W,w,V,v]=eigenall(A);
lambda1
w
v
S=v*w'/(v'*w)
E=A.*S/lambda1