Nothing
resign.sca <-
function(x, mode="B", newsign=1, ...){
# Resigns Weights of fit SCA nmodel
# Nathaniel E. Helwig (helwig@umn.edu)
# last updated: May 25, 2018
# check mode
mode <- mode[1]
if(mode=="B"){
absorb <- "C"
} else if(mode=="C"){
absorb <- "B"
} else {
stop("Incorrect input for 'mode'. Must set to 'B' or 'C' for SCA")
}
# check newsign
nfac <- ncol(x$B)
newsign <- sign(newsign)
if(length(newsign)!=nfac) newsign <- rep(newsign[1],nfac)
if(any(newsign == 0)) stop("Input 'newsign' must contain entries of c(-1, 1).")
# resign factors
if(mode=="B"){
Bsign <- sign(colMeans(x$B^3))
if(any(Bsign == 0)) Bsign[Bsign == 0] <- 1
svec <- newsign*Bsign
if(nfac==1L) { Smat <- matrix(svec) } else { Smat <- diag(svec) }
x$B <- x$B %*% Smat
x$C <- x$C %*% Smat
x$D <- lapply(x$D, function(x) x %*% Smat)
return(x)
} else {
Csign <- sign(colMeans(x$C^3))
if(any(Csign == 0)) Csign[Csign == 0] <- 1
svec <- newsign*Csign
if(nfac==1L) { Smat <- matrix(svec) } else { Smat <- diag(svec) }
x$C <- x$C %*% Smat
x$D <- lapply(x$D, function(x) x %*% Smat)
x$B <- x$B %*% Smat
return(x)
}
}
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