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Utilisation d'une variable de chaîne dans un script de création de graphique

Au début de mon script JMP, je définis une variable chaîne comme celle-ci :

Trim0 = "trim_lvl_a";

Il y a une colonne dans ma table de données nommée trim_lvl_a. Plus tard dans le script, je crée un script Graph Builder comme celui-ci :

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.</CODE></P><P> </P></LINGO-BODY><LINGO-LABS id="lingo-labs-741117" slang="en-US" mode="CREATE"><LINGO-LABEL>Automatisation et scripts</LINGO-LABEL></LINGO-LABS><LINGO-SUB id="lingo-sub-741157" slang="en-US" mode="CREATE">Re : Utilisation d'une variable chaîne dans un script de création de graphique</LINGO-SUB><LINGO-BODY id="lingo-body-741157" slang="en-US" mode="CREATE"><P>Vous devez évaluer le trim0 avant de soumettre le code à JMP. Les modifications ci-dessous de votre script devraient faire ce dont vous avez besoin.</P> <PRE><CODE class=" language-jsl">Eval( Eval Expr( 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( Expr( 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 ) )} ) ) ) ) ) );