Questions about "<function missing>"

[EVERY DETAIL]

I recently took over an outdated project built in FM8 or earlier. There is a function I'm having trouble with which contains the code below. I'm familiar with the most recent graphing capabilities of FM but this "<function missing>" is confusing me. The code creates a bar graph attached to this post. If I try to change anything about this calculation/container I get an error message "A number, text constant, field name or "(" is expected here". The cursor highlights the "<function missing>" piece of code. I'm not clear on how this code even works with that first line... but it does. I need to change the formatting (and therefore code) of this graph. Can anybody point me in the right direction on how to either update this code or deal with the "<function missing>" portion of it? As soon as I remove that function missing part, it breaks the graph. Any help would be greatly appreciated. Thanks in advance.

<Function Missing> (

"OpenDrawing (600;635)" & &#182; &

"	OpenChart(175;10;400;600;on)" & &#182; &

"  	ChartData ( " &

$$ChartData & ";" & $$BarChartDataSelf  &

")" & &#182; &

"  	BarChart (horizontal+label;90)" & &#182; &

"// set up styles" & &#182; &

"   BorderStyle(all;;;;transparent)" & &#182; &

"   FillStyle(2;blue)" & &#182; &

"   FillStyle(1;green)" & &#182; &

"   LabelStyle(all;Verdana;10;bold;white)" & &#182; &

"   LabelOptions(all;;-35;-1)" & &#182; &

"   LabelTexts (all; \"|f1|\" )" & &#182; &

"// set up axes" & &#182; &

"	Scaling(x;linear;1;5;8)" & &#182; &

"	AxisLine (all;0)" & &#182; &

"	AxisMajorTicks (all;0)" & &#182; &

"	AxisMajorTickLabelStyle(all;\"Verdana\";12;bold;;; " & &#182; &

"	AxisMajorTickLabelTexts(y; " &

$$ChartLabels &

")" & &#182; &

"	MajorGridLineWidths(x;y;0)" & &#182; &

"	GridFrame()" & &#182; &

"	CloseChart()" & &#182; &

"CloseDrawing()"

)

[Vaughan]

At a guess it's probably a function from a third-party FMP plug-in. A charting plug-in from the looks of it.

[EVERY DETAIL]

Thank you Vaughan, you were correct, it was a missing "xmchart" plugin, once it was installed, the function names appeared. Thank you for your post!