sar_eigs | R Documentation |
compute the eigenvalues \lambda
for the spatial weight matrix W
and lower and upper bound
for parameter \rho
.
sar_eigs(eflag, W)
eflag |
if eflag==1, then eigen values |
W |
spatial weight matrix |
function returns a list of
rmin |
minimum value for |
rmax |
maximum value for |
time |
execution time |
James P. LeSage, Adapted to R by Miguel Godinho de Matos <miguelgodinhomatos@cmu.edu>
set.seed(123)
# sparse matrix representation for spatial weight matrix W (d x d)
# and m nearest neighbors
d <- 100
m <- 6
W <- sparseMatrix(i=rep(1:d, each=m),
j=replicate(d, sample(x=1:d, size=m, replace=FALSE)), x=1/m, dims=c(d, d))
sar_eigs(eflag=1, W)
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