JSL generate map graph

[#1]

As the attachment, the JPG  graph is manually generated, then save as JSL, when add for loop and use "char(columnname(i))" to place "Flange", it not display "Row Legend()".

manually generated:

Bivariate(
	Y(:Y),
	X(:X),
	SendToReport(
		Dispatch(
			{},
			"Bivar Plot",
			FrameBox,
			{Marker Size(5), Marker Drawing Mode("Normal"),
			Row Legend(
				Flange,
				Color(1),
				Color Theme("Blue to Gray to Red"),
				Marker(0),
				Marker Theme(""),
				Continuous Scale(1),
				Reverse Scale(0),
				Excluded Rows(0)
			)}
		)
	)
);

[#2 · Accepted solution]

If you change your JSL line in your attached JSL file from

Char( columnname(i)),

to

Eval( columnname(i)),

your script will work