show intended and not intended dependencies

bugs/2024/20240429/demoBundleBug.jy

@@ -5,6 +5,7 @@ the bundled datasets, then sometimes a variable intended for
 the X values is ignored.  There really needs to be something
 that disambiguates this.''')
 
+# here is where it is not intended to assert a depenency.
 wspeed= getDataSet('vap+hapi:http://jfaden.net/HapiServerDemo/hapi?id=Iowa+City+Conditions&parameters=WindSpeed&timerange=2024-04-27')
 alt= getDataSet('vap+hapi:http://jfaden.net/HapiServerDemo/hapi?id=Iowa+City+Conditions&parameters=Altimeter&timerange=2024-04-27')
 
@@ -14,4 +15,18 @@ print ds
 print xtags(ds)
 print xtags(unbundle(ds,0))
 
-plot( ds )
+plot( 0, ds )
+
+# here is where it is intended to assert a dependency.
+t= linspace('2024-01-01T00:00Z','2024-01-02T00:00Z',200)
+x= link(t,randn(200))
+y= link(t,randn(200))
+
+z= sqrt( x**2 + y**2 )
+ds= bundle( x, y, z )
+
+print ds
+print xtags(ds)
+print xtags(unbundle(ds,0))
+
+plot( 1, ds )