Previous Day COi

AmiBroker
1

Hiii,
I'm trying to find cumulative open interest for previous day and add that in title. below is my code but somehow i'm getting COI of sameday.

Anyhelp will be highly appreciated.

	_SECTION_BEGIN("COI");
	Sym_F1 		= Name();
	Sym_F2 		= StrReplace(Name(), "-I.NFO", "-II.NFO");
	Sym_F3 		= StrReplace(Name(), "-I.NFO", "-III.NFO");

		SetForeign( Sym_F2 );
		NR_O = O;	NR_H = H;	NR_L = L;	NR_C = C;	NR_OI = OI;	NR_V = V;
		RestorePriceArrays();

		SetForeign( Sym_F3 );
		FR_O = O;	FR_H = H;	FR_L = L;	FR_C = C;	FR_OI = OI;	FR_V = V;
		RestorePriceArrays();
		
	COI		=	OI	+	NR_OI	+	FR_OI;

y_COI = TimeFrameGetPrice("C",inDaily,-1);
	P_day = Ref(Day(),-1);
	P_COI = ValueWhen(P_DAY,COI,1);
2

Have you tried running an exploration and see what values are being returned ?

This may help in determing what steps would need to be taken.

Just a suggestion.

3

You have to tell us what timeframe you are using.

If it is Daily, then
P_COI = Ref( COI, -1);
is enough.

If it is intraday, then

P_day = Day() != Ref( Day(), -1);
P_COI = ValueWhen( P_day, Ref( COI, -1), 1);

I'm shifting the COI Array by 1 bar and checking the value at new day to get the previous day's last bar total.

I did not run it but i'm thinking its ok.