meigen0 | R Documentation |
This function estimates Moran eigenvectors at unobserved sites using the Nystrom extension.
meigen0( meig, coords0, s_id0 = NULL )
coords0 |
Matrix of spatial point coordinates of unobserved sites (N_0 x 2) |
meig |
Moran eigenvectors and eigenvalues. Output from |
s_id0 |
Optional. ID specifying groups modeling spatial effects (N_0 x 1). If specified, Moran eigenvectors are extracted by groups. It is useful e.g. for multilevel modeling (s_id is the groups) and panel data modeling (s_id is given by individual location id). Default is NULL |
sf |
Matrix of the first L eigenvectors at unobserved sites (N_0 x L) |
ev |
Vector of the first L eigenvalues (L x 1) |
ev_full |
Vector of all eigenvalues (N x 1) |
Daisuke Murakami
Drineas, P. and Mahoney, M.W. (2005) On the Nystrom method for approximating a gram matrix for improved kernel-based learning. Journal of Machine Learning Research, 6 (2005), 2153-2175.
meigen
, meigen_f
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