Try this, it allows for the bar to be >= the required time, or if the first bar of the day is >= required time
tn = TimeNum(); dn = datenum(); tns = 93000; Start = tn>=tns and ( ref( tn<tns ,-1) or dn!=ref(dn,-1) ); rth_open = ValueWhen( Start, Open); -- Cheers Graham Kav AFL Writing Service http://www.aflwriting.com 2008/8/3 hoolee0820 <[EMAIL PROTECTED]>: > It seems TimeNum() only works correctly in time based charts. In a > non-time based chart like Range chart, it may or may not return > desired result. For example, > > rth_open = ValueWhen(TimeNum() == 93000, Open); > > this will only return the Open price if you happend to have a bar > starting at 9:30, this usually is not the case in a non time based > chart. > > It seems also time compress functions only work with internal time > based array. > > If anyone has any differet views, please correct me and help out. > > > --- In [email protected], "Ara Kaloustian" <[EMAIL PROTECTED]> wrote: >> >> 1. Create new array that contains only data of interest >> Newarray = iif(TimeNum() >=091500 and Timenum() <141500,High,0); >> 2. Compress the chart >> TimeFrame Set(inDaily); >> Read High value Yest_High = Ref(High,-1); >> etc >> >> TimeFrameResore(); >> >> ----- Original Message ----- >> From: "hoolee0820" <[EMAIL PROTECTED]> >> To: <[email protected]> >> Sent: Saturday, August 02, 2008 2:57 PM >> Subject: [amibroker] Re: How to get RTH high, low and close in a 24 > hr >> chart? >> >> >> > --- In [email protected], "hoolee0820" <hoolee0820@> > wrote: >> >> >> >> Please help me to find yesterday regular session (as define in >> > Database >> >> Setting, ie 9:30 to 14:15) high, low and close prices in a 24 > hour >> >> chart. I don't seem to be able to figure that one out. What code >> > would >> >> you use.... >> >> >> > >> > Let me correct myself and see if someone can help me out... >> > >> > how do you determine yesterday's RTH high, low, open and close in > a non- >> > time based (e.g. Range Bar) chart? >> >
