RSI divergence for Amibroker (AFL)

// RSI divergence
// Backgraund color White


P = Param("Priod RSI", 14, 2, 14, 1);
VRSI = RSI(P);

Length = 100; 
Lapse = 3; 

fUp = VRSI > Ref(VRSI, -1) & VRSI > Ref(VRSI, 1) & VRSI >55;
fDown = VRSI < Ref(VRSI, -1) & VRSI < Ref(VRSI, 1) & VRSI < 45;

Div = 0;

for(i = Length; i < BarCount; i++)
{


// Down
if(fUp[i])
{
k = i-1;
do
{
if(VRSI[k] > VRSI[i] & fUp[i] & fUp[k])
{
if(C[k] < C[i] & i-k > Lapse)
{
Div[i] = 1;
}
k = i-Length;
}
else
k = k-1;
} while( k > i-Length );
}

////////////////////////////

// Up

if(fDown[i])
{
k = i-1;
do
{
if(VRSI[k] < VRSI[i] & fDown[i] & fDown[k])
{
if(C[k] > C[i] & i-k > Lapse)
{
Div[i] = -1;
}
k = i-Length;
}
else
k = k-1;
} while( k > i-Length );
}

}



Fon = IIf(Div == 0, 0, 1);

Col = IIf(Div == 1, 4, IIf(Div == -1, 5, 1));

Color = IIf(Div == 1, 48, IIf(Div == -1, 14, 1));

Color = IIf(fUp == 1, 48, IIf(fDown == 1, 14, 1));

Div = IIf(Div == 0, Null, abs(Div));
Fon = abs(Div);




Title = EncodeColor(4)+"RSI(" + WriteVal(P, 2.0) + ")" + EncodeColor(1) + " ="+WriteVal(RSI(P)); 
Plot( RSI(P), "RSI", Col, 5);
Plot( 25,"", 4, 16+4096);
Plot( 75,"", 4, 16+4096);
Plot(Fon, "", Color, 16384+32768+4096, MinValue = 0, MaxValue = 1);

_SECTION_END();