[amibroker] How to predict future price values in afl for Fisher transform?

["przemyslawuk" <przemyslawuk@xxxxxxxxxxx>]

Hi,
I use Fisher transform in my trades. The code core (below)
 is taken from Amibroker AFL library. It works great.
I want to modify the code to get it to write the necessary 
next day's price (H-L)/2 for it to produce a buy or sell signal.
The problem for me is that the function Normalize(Med, 10)
works on 10 last bars and I don't know how to append theoretical 
data to the last column.
Maybe I just want to do it the rong way.
I find this indicator very useful, but because I normally trade EOD
I am always "1 day late" with my trades. 
To be able to calculate today what the next day's price should be 
for 
the fisher transform to generate buy/sell signal would give an 
advantage.
I hope I explaned it well.

Can anyone help to modify the code? 
Help very much appreciated.
=====================================================================
SetBarsRequired(200, 0);

// Ehlers formulas

function Normalize(array, arraylen)
{
MaxH = HHV(array, arraylen); MinL = LLV(array, arraylen);
Val = 2*((array-MinL)/(MaxH-MinL)-0.5);
Val2 = EMA(Val,3); Val2 = Min(Val2, .9999); Val2 = Max(Val2, -.9999);
return Val2;
}

function Fisher(array)
// Figure 1.7 on p. 7
{
  F = array;
  F = .25 * log((1+ array)/(1 - array)) + .5 * Ref(F, -1);
  return F;
}

Med = (H+L)/2;

// Fisher Transform
FisherXform = Fisher(Normalize(Med, 10));
Plot(FisherXform, "Fisher Transform", colorRed, styleLine);
Plot(Ref(FisherXform, -1), "", colorBlue, styleLine);
PlotGrid(2);
PlotGrid(-2);

Buy = Cross(FisherXform,Ref(FisherXform,-1));
Sell = Cross(Ref(FisherXform,-1),FisherXform);

PlotShapes(shapeUpArrow*Buy,colorBrightGreen);
PlotShapes(shapeDownArrow*Sell,colorRed);




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