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How do I make a graph with two different time scales (broken X-axis graph)?

Question

 How do I make a broken X-axis graph?

Answer

Steps to reproduce using the interface

 

1. Open the Broken Time Axis.jmp data table
2. Graph—>Graph Builder
3. Drop Group into Overlay role
4. Drop Weeks on X-axis
5. Drop Years on X-axis
6. Drop CD4+ T-lymphocyte counts on Y-axis
7. Adjust Graph Spacing
8. Adjust X-Axis 0-15, increment 3
9. Adjust other X-Axis 0.5-12, increment 1, best format
10. Remove graph title
11. Click Done

Broken Time Axis GraphBroken Time Axis Graph

 

JSL to reproduce using a script

//Broken X-axis 
Names Default To Here(1);
Clear Log();
dtbroken_2# = Open( "Broken Time Axis.jmp" );
dtbroken_2# << Graph Builder(
 Size( 387, 294 ),
 Show Control Panel( 0 ),
 Graph Spacing( 10 ),
 Variables(
  X( :Weeks ),
  X( :Years ),
  Y( :Name( "CD4+ T-lymphocyte counts" ) ),
  Overlay( :Group )
 ),
 Relative Sizes( "X", [90 222] ),
 Elements(
  Position( 1, 1 ),
  Points( X, Y, Legend( 21 ) ),
  Line( X, Y, Legend( 25 ) )
 ),
 Elements(
  Position( 2, 1 ),
  Points( X, Y, Legend( 23 ) ),
  Line( X, Y, Legend( 26 ) )
 ),
 SendToReport(
  Dispatch(
   {},
   "Weeks",
   ScaleBox,
   {Min( -0.387931034482759 ), Max( 14.6120689655172 ), Inc( 3 ),
   Minor Ticks( 0 )}
  ),
  Dispatch(
   {},
   "Years",
   ScaleBox,
   {Format( "Best", 12 ), Min( 0.5 ), Max( 11.6398305084746 ), Inc( 1 ),
   Minor Ticks( 0 )}
  ),&nbsp;
  Dispatch(
   {},
   "CD4+ T-lymphocyte counts",
   ScaleBox,
   {Min( 0 ), Max( 1211 ), Inc( 200 ), Minor Ticks( 1 )}
  ),
  Dispatch(
   {},
   "400",
   ScaleBox,
   {Legend Model( 21, Base( 0, 25, 0 ), Base( 1, 25, 1 ) )}
  ),
  Dispatch( {}, "graph title", TextEditBox, {Set Text( "" )} )
 )
);

 

Broken X-Axis