Nothing
rowTrendFuzzy <-
function(score, probs, y, mat.fuzzy=NULL, alternative=c("two.sided", "less", "greater"),
check=TRUE){
if(is.null(mat.fuzzy)){
if(missing(score) | missing(probs))
stop("score and probs need to be specified, if mat.fuzzy is not specified.")
mat.fuzzy <- getMatFuzzy(score, probs, check=check)
rm(probs)
}
else{
if(!missing(score) | !missing(probs))
stop("If score and probs are specified, mat.fuzzy is not allowed to be specified.")
if(!is.matrix(mat.fuzzy))
stop("mat.fuzzy must be a matrix.")
if(any(mat.fuzzy < 0))
stop("All values in mat.fuzzy must be non-negative.")
}
if(any(is.na(mat.fuzzy)))
stop("No missing values allowed in mat.fuzzy (or in probs).")
if(any(is.na(y)))
stop("No missing values allowed in y.")
if(any(!y %in% c(0,1)))
stop("The values in y must be either 0 or 1.")
if(length(y) != ncol(mat.fuzzy))
stop("The length of y differs from the number of columns of mat.fuzzy (or in probs).")
piHat <- mean(y)
num <- as.vector(mat.fuzzy %*% (y-piHat))
mat.fuzzy <- mat.fuzzy - rowMeans(mat.fuzzy)
denom <- rowSums(mat.fuzzy * mat.fuzzy) * piHat * (1-piHat)
z <- num / sqrt(denom)
alt <- match.arg(alternative)
rawp <- switch(alt, less=pnorm(z), greater=pnorm(z, lower.tail=FALSE),
two.sided=2*pnorm(-abs(z)))
names(num) <- names(z)
structure(list(stat=z, rawp=rawp, theta=num/denom, varTheta=1/denom))
}
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