False Bar Stochastic

Hello,
I had posted this question before but as I got no suitable reply I am posting it again with some changes
The False Bar Stochastic for Advanced Get can be duplicated in Amibroker thus

_SECTION_BEGIN("Stochastic_45-4-2_833");

ColorX=colorBlack;
//ColorX=colorWhite;

SetChartBkColor(ParamColor("Panel color ",ColorX));

periods = Param( "Periods", 45, 1, 200, 1 );
K1smooth = Param( "%K1 avg", 4, 1, 200, 1 );
//Plot( StochK( periods , K1smooth), _DEFAULT_NAME(), colorCustom3, styleNoLabel | styleThick | styleDots);


periods = Param( "Periods", 45, 1, 200, 1 );
K1smooth = Param( "%K1 avg", 4, 1, 200, 1 );
D1smooth = Param( "%D1 avg", 2, 1, 200, 1 );
//Plot( StochD( periods , K1smooth, D1Smooth ), _DEFAULT_NAME(), colorCustom3, styleNoLabel | styleThick | styleDots);



A = StochK( periods , K1smooth);
B = StochD( periods , K1smooth, D1Smooth );


Plot (20, "", colorTan, styleNoLabel);
Plot (50, "", colorLavender, styleNoLabel);
Plot (80, "", colorTan, styleNoLabel);

PlotOHLC( 100, 100 , 95 , 95 , "", IIf(A>80,colorAqua,ColorX), styleCloud | styleNoLabel);
PlotOHLC( 5, 5 , 0 , 0 , "", IIf(A<20,colorAqua,ColorX), styleCloud | styleNoLabel);

periods = Param( "Periods", 8, 1, 200, 1 );
K1smooth = Param( "%K1 avg", 3, 1, 200, 1 );



periods = Param( "Periods", 8, 1, 200, 1 );
K2smooth = Param( "%K1 avg", 3, 1, 200, 1 );
D2smooth = Param( "%D1 avg", 3, 1, 200, 1 );

M = StochK( periods , K2smooth);
N = StochD( periods , K2smooth, D2Smooth );

ColorK=IIf(A>B,colorBrightGreen,colorRed);

Plot( M,"StoK", ColorK, styleNoLabel|styleThick);
Plot( N,"StoD", colorDarkYellow, styleNoLabel|styleDashed);



//PlotOHLC( 0, A , B , B , "Cloud", IIf(A > B ,colorAqua,colorRed), styleCloud | styleNoLabel);


_SECTION_END();

What I want is an exploration to return the first instance of a false bar appearance in a security
I tried

k = StochK();
d = StochD();

overbought = k > 80;
falseSignal = Ref( overbought, -1 ) AND C > Ref( C, -1 );

Filter = falseSignal;
AddColumn( Close, "Close" );
AddColumn( Ref( Close, -1), "Prev Close" );
AddColumn( Ref( k, -1), "Prev %k" );

But this did not work either

Can somebody help?

False Bar Stochastic