[amibroker] find today's dailybar high and low from intraday bar

[murthysuresh]

here is what i am trying to do. 
1. take the bars where the datenum = today's datenum
2. get teh Highest value 

AddColumn(TimeFrameGetPrice( "C", inDaily, 0,expandFirst ),"C");
a=HHV(DateNum()== DateTimeConvert( 0, DateTime()),H);
AddColumn(a,"Hihest today");


filter=true;

instead it is only returning the 1 in the filter.