GetBar from week open

[wokitun]

Hi guys!

I'd like to draw a line from (week open and month open) bar to currentBar.

I use with this to get bars from daily open...

barsAgoDailyOpen = CurrentBar - Bars.GetBar(new DateTime(Time[0].Year, Time[0].Month, Time[0].Day));

How can I get from week and month open bar to now.
Which is the easiest and simplest solution?

many thx
w.

[Harry]

Weekly Open:

You would need to check for the date of the current trading day. If there is a new date (first bar of new trading day) check whether it is a Monday. If it is a Monday store the value of the CurrentBar and you can use it to draw your line from the open.

#region Variables
private DateTime  currentDate = Cbi.Globals.MinDate;
private DateTime  lastDate = Cbi.Globals.MinDate;
private int weeklyOpen = 0;
........
#endregion

protected override void OnBarUpdate()
{
       currentDate = Bars.GetTradingDayFromLocal(Time[0]);
       if(currentDate > lastDate)
        { 
             if(currentDate.DayOfWeek == DayOfWeek.Monday) 
                  weeklyOpen = CurrentBar;
             lastDate = currentDate;
         }
}

For a monthly open just check whether the current date is the first business day of a month.

The indicator is available in the downloads (search for SessionPivots V42), you can always try to copy parts of the code.

[wokitun]

Thanks Harry!

Its a bit confuse for me. Im newbie...
Is there any easiest way?

Meanwhile i try to do your way....

[Harry]

Thanks Harry!

Its a bit confuse for me. Im newbie...
Is there any easiest way?

Meanwhile i try to do your way....

This is only 5 simple lines of code in OnBarUpdate() to collect the index of the bar for the weekly open. I would consider this pretty simple!

[wokitun]

Ok...
What happen if Monday is not trading day //celebrate..market close...// as a result of this not weekly open that day.
What i find.. .If weekly first day starts at Tuesday...draw line begins from Tuesday...

example...
My result at Monthly open.

barsAgo = CurrentBar - Bars.GetBar(Time[0].AddDays(-Time[0].Day));

Not the best and properly solution...

Or I understand something wrong?

thx
w.

[Harry]

Ok...
What happen if Monday is not trading day //celebrate..market close...// as a result of this not weekly open that day.
What i find.. .If weekly first day starts at Tuesday...draw line begins from Tuesday...

example...
My result at Monthly open.

barsAgo = CurrentBar - Bars.GetBar(Time[0].AddDays(-Time[0].Day));

Not the best and properly solution...

Or I understand something wrong?

thx
w.

You are absolutely right. Easiest solution is to convert the DayOfWeek to an integer. Sunday has the value 0, Saturday has the value 6. So you could check for
(int)Time[0].DayOfWeek to decrease. The bar where that value decreases marks the beginning of the week, whatever day of week it is.