RE: [amibroker] Re: Help needed on a simple code:

["dbw451" <dbw451@xxxxxxxxxxx>]

I assumed you had your database settings set to your market hours.  You
could try changing your database settings for intraday to "Show day session
only" with your trading hours set to 07:45 to 16:00.  If that is not
feasible, you could always use a loop to brute force your daily high/low
values:

 

BarTime = TimeNum();

 

dKeepL = 9999999;

dKeepH = 0;

YDayH = Null;

YDayL = Null;

for(i=1; i<BarCount; i++) {

       dKeepH[i] = dKeepH[i-1];

       dKeepL[i] = dKeepL[i-1];

       YDayH[i] = YDayH[i-1];

       YDayL[i] = YDayL[i-1];

 

       if (BarTime[i] < BarTime[i-1]) {  // New Day

              YDayH[i] = dKeepH[i-1];

              YDayL[i] = dKeepL[i-1];

              dKeepH[i] = 0;

              dKeepL[i] = 9999999;

       }

       if (BarTime[i] >= 74500 AND BarTime[i] <= 160000) {

              if (dKeepH[i] < H[i])

                     dKeepH[i] = H[i];

              if (dKeepL[i] > L[i])

                     dKeepL[i] = L[i];

       }

}

 

Plot(YDayH, "YDayH",colorWhite,styleDots+styleNoLine+styleNoRescale);

Plot(YDayL, "YDayL",colorGold,styleDots+styleNoLine+styleNoRescale);

 

 

Regards,

 

David

 

  _____  

From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf
Of nebt1
Sent: 02/17/2007 5:20 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: Help needed on a simple code:

 

Hi David,
Just find out that idea with color does not work. When I have high 
say at 16:10, it plots that high the next day. So code must be a 
function of time and not color. Hope some one has solution for this 
simple code.
Tia, Tom

--- In amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com> ps.com,
"nebt1" <nebt1@xxx> wrote:
>
> Hi David,
> Thanks for your suggestion. It certainly better that what I had 
> before. Just one more thing needed:
> yesterday high and low lines appearing on today chart from 9:30 
till 
> 16:00. I would like those lines to start appearing say at 7:45 in 
> case there are premarket news or there is a gap open in the morning
> and we need to see yesterday high/low ahead of time.
> For example my yesterday close line starts at 16:00 yesterday time 
> and keep going till 16:00 today:
> 
> marketclosetime= deValueWhenTime(O, 160000);
> Plot
> 
(marketclosetime, "",colorCustom10,styleDots+styleNoLine+styleNoRescal
> e);
> 
> So wondering how to make those two lines (yesterday high and low) 
to 
> start appearing from 7:45 today time.
> Regards, Tom
> 
> 
> --- In amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com> ps.com,
"dbw451" <dbw451@> wrote:
> >
> > Tom,
> > 
> > 
> > 
> > The way I do it is I set the line color to my background color 
> whenever the
> > line is outside my range of interest. For example, if your 
> background color
> > is black:
> > 
> > 
> > 
> > clrBg = colorBlack; // set to your background color
> > 
> > BarTime = TimeNum();
> > 
> > 
> > 
> > clrYDayH = iif (BarTime < 93000 OR BarTime > 160000, clrBg, 
> colorWhite);
> > 
> > Plot(YDayH,"", clrYDayH,styleDots+styleNoLine+styleNoRescale);
> > 
> > 
> > 
> > I would be curious to know if there is a better way (like it 
would 
> be cool
> > to have a "no color"). Actually I guess another way would be to 
> plot each
> > day's line as a separate trend line.
> > 
> > 
> > 
> > Regards,
> > 
> > 
> > 
> > David
> > 
> > 
> > 
> > _____ 
> > 
> > From: amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com> ps.com 
[mailto:amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com> ps.com] 
> On Behalf
> > Of nebt1
> > Sent: 02/17/2007 2:18 PM
> > To: amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com> ps.com
> > Subject: [amibroker] Help needed on a simple code:
> > 
> > 
> > 
> > Hi,
> > I am running a 24 hour intraday chart and I need to draw 
Horizontal 
> > line for Yesterday Low and Horizontal line for Yesterday High on 
> > Todays chart. Those lines should refer to Yesterday prices 
starting 
> > from 9:30 and ending at 16:00.
> > 
> > Here is what I got:
> > 
> > YDayH = TimeFrameGetPrice("H", inDaily, -1); // yesterdays high
> > YDayL = TimeFrameGetPrice("L", inDaily, -1); // yesterdays low
> > 
> > Plot(YDayH, "",colorWhite,styleDots+styleNoLine+styleNoRescale);
> > Plot(YDayL, "",colorGold,styleDots+styleNoLine+styleNoRescale);
> > 
> > My problem is that I am getting lines drawn for high and low for 
24 
> > hours yesterday data, but I need for 9:30 to 16:00 only.
> > 
> > Please help,
> > tia, Tom
> >
>

 


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