First bar loaded on a chart

[staycool3_a]

        protected override void Initialize()
        {
            Add(new Plot(Color.FromKnownColor(KnownColor.DarkViolet), PlotStyle.Line, "SPREAD"));
            
            Add(FirstInstrument, BarsPeriods[0].Id, BarsPeriods[0].Value);
               Add(SecondInstrument, BarsPeriods[0].Id, BarsPeriods[0].Value);

            Overlay                = false;
        }

            if (Times[1][0].DayOfYear == 7 )
            {
                a = CurrentDayOHL(BarsArray[0]).CurrentOpen[0];
                b = CurrentDayOHL(BarsArray[1]).CurrentOpen[0];
            }
            
            if( b > 0 && a >0)
            {
                c = (Closes[0][0]/a)-1;
                d = (Closes[1][0]/b)-1;
                e = (c - d);    
            }

hello,

i have a fairly simple indicator that calculates a spread between two instruments. The reason why I used day 7 as the starting point for calculating the percentage return for the instrument is because i could not find a way to use the first bar loaded on the chart. So now it's really annoying because the indicator will not work if I don't have enough data loaded. In other words, I have to load a year worth of data so the "7th day" is also loaded on the chart for this indicator to work. Is there a way to avoid the above "starting point" so that any time i load a chart, it uses the first value as the starting point. In other words, if i load 30 days worth of data.. i want to use the open of the first bar on the chart for both instruments. a code sample will be very very appreciated.

thank you in advance.

[NinjaTrader_PaulH]

Hello calhawk01,

Thanks for your post.

What is the base data series barperiod ID and value?

[staycool3_a]

Hello calhawk01,

Thanks for your post.

What is the base data series barperiod ID and value?

what? are you talking about the data series?

   Add(FirstInstrument, BarsPeriods[0].Id, BarsPeriods[0].Value);
               Add(SecondInstrument, BarsPeriods[0].Id, BarsPeriods[0].Value);

.id let's my data series adapt to whatever the underlying chart settings are and value also adapts to the underlying chart settings. but that's not my question. my question is regarding.. how do i get the first bar of the chart? no matter what the chart settings are.. if i'm in a weekly chart.. and there are 20 days loaded.. i want the first bar loaded on the chart as a starting point to be used in my calculation. if i have 181 days loaded and i'm on a daily chart.. i want the first day's value to be used in my calculation.. and so on..

[koganam]

        protected override void Initialize()
        {
            Add(new Plot(Color.FromKnownColor(KnownColor.DarkViolet), PlotStyle.Line, "SPREAD"));
            
            Add(FirstInstrument, BarsPeriods[0].Id, BarsPeriods[0].Value);
               Add(SecondInstrument, BarsPeriods[0].Id, BarsPeriods[0].Value);

            Overlay                = false;
        }

            if (Times[1][0].DayOfYear == 7 )
            {
                a = CurrentDayOHL(BarsArray[0]).CurrentOpen[0];
                b = CurrentDayOHL(BarsArray[1]).CurrentOpen[0];
            }
            
            if( b > 0 && a >0)
            {
                c = (Closes[0][0]/a)-1;
                d = (Closes[1][0]/b)-1;
                e = (c - d);    
            }

hello,

i have a fairly simple indicator that calculates a spread between two instruments. The reason why I used day 7 as the starting point for calculating the percentage return for the instrument is because i could not find a way to use the first bar loaded on the chart. So now it's really annoying because the indicator will not work if I don't have enough data loaded. In other words, I have to load a year worth of data so the "7th day" is also loaded on the chart for this indicator to work. Is there a way to avoid the above "starting point" so that any time i load a chart, it uses the first value as the starting point. In other words, if i load 30 days worth of data.. i want to use the open of the first bar on the chart for both instruments. a code sample will be very very appreciated.

thank you in advance.

Instead of:

 if (Times[1][0].DayOfYear == 7 )

you want to use:

if (CurrentBars[1] >= 7)

[staycool3_a]

Instead of:

 if (Times[1][0].DayOfYear == 7 )

you want to use:

if (CurrentBars[1] >= 7)

you mean ?

if (CurrentBars[1] [COLOR="Red"]==[/COLOR] 7)

            {
                a = CurrentDayOHL(BarsArray[0]).CurrentOpen[0];
                b = CurrentDayOHL(BarsArray[1]).CurrentOpen[0];
            }

this will freeze time and store the a and b values. not sure why you said, >=?

[staycool3_a]

you mean ?

if (CurrentBars[1] [COLOR="Red"]==[/COLOR] 7)

            {
                a = CurrentDayOHL(BarsArray[0]).CurrentOpen[0];
                b = CurrentDayOHL(BarsArray[1]).CurrentOpen[0];
            }

this will freeze time and store the a and b values. not sure why you said, >=?

            if(CurrentBars[0] ==1)			
				
			{
			a = CurrentDayOHL(BarsArray[0]).CurrentOpen[0];
		    b = CurrentDayOHL(BarsArray[1]).CurrentOpen[0];
			}
			
			if( b > 0 && a >0)
			{
				c = (Closes[0][0]/a)-1;
				d = (Closes[1][0]/b)-1;
				e = (c - d)*50000;	
			}

            SPREAD.Set(e);

Above works. Thanks!

[koganam]

you mean ?

if (CurrentBars[1] [COLOR="Red"]==[/COLOR] 7)

            {
                a = CurrentDayOHL(BarsArray[0]).CurrentOpen[0];
                b = CurrentDayOHL(BarsArray[1]).CurrentOpen[0];
            }

this will freeze time and store the a and b values. not sure why you said, >=?

My mistake for thinking that you had made a mistake and wanted running values instead of a single static frozen value. If you want just one frozen value, then, of course, your correction is right.