Double Weighted Centring
This function creates a doubly centred matrix.
bicenter.wt(X, row.wt = rep(1, nrow(X)), col.wt = rep(1, ncol(X)))
X |
a matrix with n rows and p columns |
row.wt |
a vector of positive or null weights of length n |
col.wt |
a vector of positive or null weights of length p |
returns a doubly centred matrix
Daniel Chessel
w <- matrix(1:6, 3, 2) bicenter.wt(w, c(0.2,0.6,0.2), c(0.3,0.7)) w <- matrix(1:20, 5, 4) sum(bicenter.wt(w, runif(5), runif(4))^2)
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