Nothing
GVAR_Ft <- function (data, weight.matrix=NULL) {
ID<-NULL
NAME=unique(as.character(data[,"ID"]))
timeCol=which(names(data)=="Time")
idCol=which(names(data)=="ID")
timeID=as.character(subset(data, ID==NAME[1])[,"Time"])
Year=unique(as.character(lubridate::year(timeID)))
dat=data[,-c(1:2)]
variates=colnames(dat) #names of column variables
N=length(NAME) #Number of countries
Ft=list()
for (i in 1:N) {
exo=NULL # Compute Exogenous Foreign Variables
for (j in 1:length(variates)) {
if (is.null(weight.matrix)){
F.tmp=apply(matrix(dat[,j], ,N),1,mean)
}
if (isTRUE(is.matrix(weight.matrix))) {
varMatrix=matrix(dat[,j], ,N)
F.tmp=varMatrix %*% as.matrix(weight.matrix[,i])
} else {
dat_matrix=matrix(dat[,j], ,N)
varMatrix=as.xts(dat_matrix,as.Date(timeID))
F.tmp=NULL
for (k in 1:length(Year)) {
F.tmp0=varMatrix[Year[k]] %*% as.matrix(weight.matrix[[k]][,i])
F.tmp=rbind(F.tmp,F.tmp0)
}
}
exo=cbind(exo, F.tmp) # Foreign variables
}
h=NAME[i] # index number of home country
exoNAMES=paste0(h,variates,"_FL0")
colnames(exo)=exoNAMES
Ft[[i]]=exo
}
return(Ft)
}
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