Nothing
msda_noadj <- function(x, y,model=NULL, lambda =
NULL, standardize = FALSE, alpha = 1, nlambda = 100,
lambda.factor = ifelse((nobs - nclass) <= nvars, 0.2,
0.001), dfmax = nobs, pmax = min(dfmax * 2 + 20,
nvars), pf = rep(1, nvars), eps = 1e-04, maxit =
1e+06, sml = 1e-06, verbose = FALSE, perturb = NULL) {
nvars <- dim(x)[2]
nobs <- length(y)
nclass <- length(unique(y))
if (is.null(model)){
if (nclass==2){
dsda(x, y=y, lambda=lambda, standardize=standardize, alpha=alpha)
}else if (nclass >= 3){
if (nvars <= 2000){
Omsda(x, y=y, lambda=lambda, nlambda=nlambda, lambda.factor=lambda.factor, dfmax=dfmax, pmax=pmax, pf=pf, eps=eps, maxit=maxit, sml=sml, verbose=verbose, perturb=perturb)
}else{
Mmsda(x, y=y, lambda=lambda, nlambda=nlambda, lambda.factor=lambda.factor, dfmax=dfmax, pmax=pmax, pf=pf, eps=eps, maxit=maxit, sml=sml, verbose=verbose, perturb=perturb)
}
}else if (nclass==1){
stop("y should be binary or multi-class variables.")
}
}else{
switch(model,
"binary" = dsda(x,y=y,lambda=lambda, standardize=standardize, alpha=alpha),
"multi.original" = Omsda(x,y=y,lambda=lambda, nlambda=nlambda, lambda.factor=lambda.factor, dfmax=dfmax, pmax=pmax, pf=pf, eps=eps, maxit=maxit, sml=sml, verbose=verbose, perturb=perturb),
"multi.modified" = Mmsda(x,y=y,lambda=lambda, nlambda=nlambda, lambda.factor=lambda.factor, dfmax=dfmax, pmax=pmax, pf=pf, eps=eps, maxit=maxit, sml=sml, verbose=verbose, perturb=perturb),
stop("Model should be one of 'binary', 'multi.original' and 'multi.modified'")
)
}
}
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