Nothing
fsRF <- function(mts, max.lag, show.progress = TRUE, localized = FALSE) {
k<-ncol(mts)
res<-matrix(0, k*max.lag, k)
res <- fsNames(res, mts, max.lag)
if (localized){
for (i in 1:k){
dat <- composeYX(mts, i, max.lag)
dat <- stats::na.omit(dat)
# rf <- randomForest::randomForest(dat[,-1],dat[,1],importance = T)
# df <- as.data.frame(randomForest::importance(rf))
# df<-df[df$`%IncMSE`>0,]
# df$rn<-rownames(df)
# df$s <- i
# res[df$rn, i]<-df$`%IncMSE`
sname <- colnames(mts)[i]
f<-paste0(sname," ~.")
obj <- randomForestSRC::rfsrc(stats::as.formula(f), data = as.data.frame(dat), importance = TRUE)
res[,sname]<-obj$importance
if (show.progress) svMisc::progress(100*i/k)
}
}else{
dat<-mts
for (l in 1:max.lag){
ld<-mts[-c(1:l),]
colnames(ld)<-paste0(colnames(mts),".l",l)
dat<-cbind(dat[-nrow(dat),], ld)
}
dat <- stats::na.omit(dat)
f<-paste0("Multivar(",paste0(colnames(mts),collapse = ","),") ~.")
mv.obj <- randomForestSRC::rfsrc(stats::as.formula(f), data = as.data.frame(dat), importance = TRUE)
for (v in colnames(mts)){
res[,v]<-mv.obj$regrOutput[[v]]$importance
}
}
res[res<0]<-0
return (res)
}
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