Multi Time Frame LLV

Nw:=DAYOFMONTH()<>ref(DAYOFMONTH(),-1) ;   
n1:=10;    {peryot}
x:=0;       {H_L veya C seçimi}
WH:=ValueWhen(1,Nw,Ref(HighestSince(1,Nw,H),-1));
C1:=ValueWhen(1,Nw,Ref(C,-1));
WL:=ValueWhen(1,Nw,Ref(LowestSince(1,Nw,L),-1));   
H1:=if(x=1,WH,C1);       L1:=if(x=1,WL,C1);
hhv1:=ValueWhen(1,Nw,HighestSince(n1,Nw,H1));
llv1:=ValueWhen(1,Nw,LowestSince(n1,Nw,L1));
hhv1;llv1