R/local.f.ANOVA.R

In safe: Significance Analysis of Function and Expression

local.f.ANOVA <-
function (X.mat, y.vec, ...)
{
    unique <- unique(y.vec)
    ANOVA.mat <- rep(1, length(y.vec))
    for (i in 2:length(unique)) {
        ANOVA.mat <- cbind(ANOVA.mat, (y.vec == unique[i]) *
            1)
    }
    ANOVA.inner <- solve(t(ANOVA.mat) %*% ANOVA.mat)
    ANOVA.contr <- cbind(rep(0, length(unique) - 1), diag(length(unique) -
        1))
    return(function(data = X.mat, a.x = as.matrix(ANOVA.mat),
        a.xpxi = ANOVA.inner, a.c = as.matrix(ANOVA.contr), ...) {
        n <- dim(a.x)[[1]]
        r <- dim(a.x)[[2]]
        a <- dim(a.c)[[1]]
        m <- dim(data)[[1]]
        a.y <- t(data)
        mse <- t(rep(1, n)) %*% (a.y * ((diag(n) - a.x %*% a.xpxi %*%
            t(a.x)) %*% a.y))/(n - r)
        thetahat <- a.c %*% a.xpxi %*% t(a.x) %*% a.y
        msa <- t(rep(1, a)) %*% (thetahat * ((solve(a.c %*% a.xpxi %*%
            t(a.c)) %*% thetahat)))/a
        return(as.numeric(msa/mse))
    })
}