topic Re: Check Display box existence by JSL in Discussions

Check Display box existence by JSL

tom_abramov — Mon, 17 Feb 2020 16:13:11 GMT

Hi,

Is there some function to check whether exists certain display box by number/title?

For instance:

dist = Distribution(Continuous Distribution( Column( :weight ) ));
Exists((dist<<report)[OutlineBox(10)])// will return return false
Exists((dist<<report)[OutlineBox("ABC")])// will return return false

Thank you.

Re: Check Display box existence by JSL

Mark_Bailey — Sun, 16 Feb 2020 16:44:21 GMT

See this example for a user function.

Names Default to Here( 1 );

exists = Function( { db expr },
	Try(
		db expr;
		1,
		0
	);
);

dt = Open( "$SAMPLE_DATA/Big Class.jmp" );

biv = dt << Bivariate( Y( :weight ), X( :height ), Fit Line );

bivr = biv << Report;

If( exists( Expr( bivr[OutlineBox(1)] ) ), "I'm here!", "Where did I go?" );
If( exists( Expr( bivr[OutlineBox(100)] ) ), "I'm here!", "Where did I go?" );