Nothing
dualgreedy <- function(A,nf,ns,etol=0,mattest=TRUE)
{
A <- as.matrix(A)
na <- dim(A)[1]
nf <- as.integer(nf)
ns <- as.integer(ns)
ne <- na-nf
if (ne==0) stop("number of eligible points is 0")
if (ns==0) stop("number of points have to be added is 0")
if(mattest)
{
if(!is.double(eigen(A)$values))
stop("Matrix isn't symmetric")
if(sum(eigen(A)$values>etol)<na)
stop("Matrix isn't positive definite")
}
ans <- .Fortran("grddl",
A=as.double(A),
lda=as.integer(na),
na=as.integer(na),
nf=as.integer(nf),
ne=as.integer(ne),
ns=as.integer(ns),
S=integer(ne),
det=double(1),
integer(na), # ind
double(na*na), #As
as.integer(na),# LDAS
double(na*na), #Bs
as.integer(na),# LDBS
integer(1), #ierr
PACKAGE="edesign"
)
ret <- list(S=ans$S,det=ans$det)
ret$A <- A
ret$na <- na
ret$nf <- nf
ret$ns <- ns
ret$ne <- ne
ret$method <- "dual greedy"
class(ret) <- "monet"
ret
}
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