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在图形生成器脚本中使用字符串变量

在 JMP 脚本的早期，我定义了一个字符串变量，如下所示：

Trim0 = "trim_lvl_a";

我的数据表中有一个名为trim_lvl_a 的列。稍后在脚本中，我创建一个图形生成器脚本，如下所示：

dt << New Script(
       "maps",
Graph Builder(
	Size( 550, 647 ),
	Graph Spacing( 5 ),
	Variables(
		X( :X ),
		Y( :Y ),
		Group Y( :Name( "Tambient (degC)" ) ),
		Wrap( :LotWafer ),
		Color( Column(Trim0) )
	),
	Elements( Points( X, Y, Legend( 3 ) ) ),
	Local Data Filter(
		Add Filter(
			columns( :LotWafer, :Name( "Tambient (degC)" ) ),
			Where( :Name( "Tambient (degC)" ) == 25 ),
			Display( :LotWafer, Size( 224, 105 ), List Display )
		)
	),
	SendToReport(
		Dispatch(
			{},
			"X",
			ScaleBox,
			{Min( -5 ), Max( 60 ), Inc( 5 ), Minor Ticks( 0 ),
			Label Row( Show Major Grid( 1 ) )}
		),
		Dispatch(
			{},
			"Y",
			ScaleBox,
			{Min( -5 ), Max( 60 ), Inc( 5 ), Minor Ticks( 0 ),
			Label Row( Show Major Grid( 1 ) )}
		)
	)
);
);

The problem is where I try to use the Trim0 string constant in the Color part of the graph builder. Once my JMP script executes and the graph builder script called "maps" is saved to my data table dt, then when I click on the "maps" script in dt, it fails to execute and bring up the graph. How can I use my string variable Trim0 within this graph builder to refer to the desired column in my data table? I do not want to have to hard-wire the colulmn name trim_lvl_a into the Color part of the graph builder script. Thanks.

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