In my 5 minute intraday chart, i am trying to identify when it crossed 
  
yesterday's daily 
  High.
_SECTION_BEGIN("PlotYesterdayHigh");
dc = 
  TimeFrameCompress( High,inDaily ); 
WriteIf( 
  Cross(Close,Ref(dc,-1)), "The close crossed yesterday high." 
+ 
  "Yesterday high = " + WriteVal(Ref(dc,-1)) + "Close = " + 
  WriteVal
(Close) ,"") ;
_SECTION_END();
It is not working 
  for reasons i dont know.
I would appreciate some 
  assistance.
Seede