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FBARS:=SYSPARAM(1)-1;

TJ:=BARSSINCE(CLOSE)>FBARS-50;

HH:=HIGH;

LL:=LOW;

OO:=OPEN;

CC:=CLOSE;

vbars=ffl.vardata("fbars")

vh=ffl.vardata("hh")

vl=ffl.vardata("ll")

vo=ffl.vardata("oo")

vc=ffl.vardata("cc")

last=ubound(vh)

if last<101 then

b=last+1

else

b=0

for i=last-101 to last-51

vh(i)=vh(i+51)

vl(i)=vl(i+51)

vo(i)=vo(i+51)

vc(i)=vc(i+51)

a=(vh(last-51)+vl(last-51))/2

j=1

for i=last-49 to last

j=j+2

vh(i)=2*a-vl(i-j)

vl(i)=2*a-vh(i-j)

vo(i)=2*a-vc(i-j)

vc(i)=2*a-vo(i-j)

end if

ffl.vardata("hh")=vh

ffl.vardata("ll")=vl

ffl.vardata("oo")=vo

ffl.vardata("cc")=vc

ffl.varstartindex("hh")=b

ffl.varstartindex("ll")=b

ffl.varstartindex("oo")=b

ffl.varstartindex("cc")=b

A:=BACKSET(ISLASTBAR,50);

STICKLINE(A AND CC>=OO,OO,CC,6,1),SHIFT50,colorFF00FF;

STICKLINE(A AND CC>=OO,LL,OO,0.1,1),SHIFT50,colorFF00FF;

STICKLINE(A AND CC>=OO,CC,HH,0.1,1),SHIFT50,colorFF00FF;

STICKLINE(A AND CC<OO,OO,CC,6,0),SHIFT50,colorFF00;

STICKLINE(A AND CC<OO,LL,HH,0.1,0),SHIFT50,colorFF00;

VERTLINE(ISLASTBAR),POINTDOT,colorFFFF;