| projection.ip {Epi} | R Documentation |
Projects the columns of the matrix M on the space spanned by the
columns of the matrix X, with respect to the inner product
defined by weight: <x|y>=sum(x*w*y).
projection.ip(X, M, orth = FALSE, weight = rep(1, nrow(X)))
X |
Matrix defining the space to project onto. |
M |
Matrix of columns to be projected. Must have the same number
of rows as X. |
orth |
Should the projection be on the orthogonal complement to
span(X)? |
weight |
Weights defining the inner product. Numerical vector of
length nrow(X). |
A matrix of full rank with columns in span(X).
Bendix Carstensen, Steno Diabetes Center, http://www.pubhealth.ku.dk/~bxc, with help from Peter Dalgaard.