BEGIN{
    NumBins= (Discretize ? Discretize : 2)
    BinNames = (BinNames ? BinNames : 0)
    NoProj = (NoProj ? NoProj : 0)
}

	     {gsub(/%.*/,"")}
/^[ \t]*$/   { next }
/@relation/  { print $0}#"-"NumBins"Bins" }
/@attribute/ { Proj ? printProj() : initCol() }
/@class/     { initClass() }
/@project/   { print $0; Proj=1; In=0 }
In           { printData() }
/^@data/     { print $0; mapBins(); In=1 }
/^@/         { next }

function initCol(  n,i, seen,binned,name) {
	Columns[++Cols] = $2
	name = $2
        sub(/?/,"",name)
	ColName2Indx[name] = Cols
	for (i = 1; i <= NF-2; i++) {
	    ColValues[Cols,i] = $(i+2) #@attr name 1stval 2ndval 3rdval...
	}
	mapBins(ColValues, Cols, NF-2, BinMap)
	printf $1" "$2
	for (i = 1; i <= NF-2; i++) {
	    binned = BinMap[Cols,$(i+2)]
	    if (!seen[binned]) {
		seen[binned] = 1
		printf " "BinMap[Cols,$(i+2)]
	    }
	}
	print ""
}

function initClass() {
    Columns[++Cols] = $2
    Class[Cols] = 1
    printf $1" "$2
    for (i = 3; i <= NF; i++) {
	printf " "$i
    }
    print ""
}

#BinMap[columnNumber, value] = bin
function mapBins(ColValues, colIndx, numValues, BinMap,     tmp,i,c) {
    for (i = 1; i <= numValues; i++) {
	val = ColValues[colIndx,i]
	binWidth = numValues/NumBins
	bin = int((i-1)/binWidth)+1

	if (BinNames)
	    BinMap[colIndx,val] = "B"(bin)
	else
	    BinMap[colIndx,val] = ColValues[colIndx,int(numValues*((bin-1)/NumBins))+1]

	if (BinNames && NumBins=5)
	    BinMap[colIndx,val] = rangeName(bin)
    }
}

function rangeName(bin,     name) {
    name = ""
    if (bin == 1)
	name = "vl"
    if (bin == 2)
	name = "lo"
    if (bin == 3)
	name = "md"
    if (bin == 4)
	name = "hi"
    if (bin == 5)
	name = "vh"
    return name
}

function printData() {
    for (c = 1; c <= Cols; c++) {
	if (Class[c])
	    printf $c" "
	else
	    printf BinMap[c,$c]" "
    }
    print ""
}

function printProj(    i,seen) {
    printf $1" "$2
    for (i=3; i<=NF; i++) {
	name = $2
	sub(/?/,"",name)

	binned = BinMap[ColName2Indx[name],$i]
	if (!seen[binned]) {
	    seen[binned] = 1
	    printf " "binned

	}
    }
    print ""
}