Odd script behavior for the GoTo message

waltp

I'm puzzled about a simple script I want to write using the GoTo message. I want to add a button to a script that will allow the user to go to a column in a data table. The following, copied from the Script Index and which is the basis for what I want, works fine:

Names Default To Here( 1 );

dt = Open( "$SAMPLE_DATA/Blood Pressure.jmp" );

dt << Go to( 2 );

However, the following does not:

Names Default To Here( 1 );

dt = Open( "$SAMPLE_DATA/Blood Pressure.jmp" );

i = 2;

dt << Go to( i );

I get back a beep with Scriptable[] in the log. Why won't the second one go to column 2? How can I make this happen?

Thanks for any help.

Walt Paczkowski

unknown

I could find two ways for this:

Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA/Blood Pressure.jmp" );
i = 2;
Eval(Parse(EvalInsert("dt << Go to(^i^)")));

From p. 431 of jmp scripting guide I adapted the example to this:

Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA/Blood Pressure.jmp" );
i = 2;
eval(eval expr(dt << Go to(Expr(i))));

Sometimes JMP doesn't evaluate the arguments of functions. I'm not really sure when this happens and why but it always confuses me.