Plot draws only the last value

[swbo1810]

Hello, Plot only draws a line of the last value in the pane and not previous values. What have I done wrong? Thank you.

_SECTION_BEGIN("My Kelly ");

longonly = True;
kap = 1000;

//lookback
lookback = 54;

// Die Kelly-Zahl wird nur auf Basis der Lookback-Bars berechnet
if (lookback > 0)
{
	numwin = 0;
	numlose = 0;
	win = 0;
	lose = 0;
	sumwin = 0;
	sumlose = 0;
	avwin = 0;
	avlose = 0;
	riskpercent = 0;
	percentwin = 0;
	riskpercent = 0;
	sharestohold = 0;

// Berechnung der Gewinn- und Verlustwahrscheinlichkeit sowie des durchschn. Gewinns und Verlusts
	for (i = 0; i < lookback - 1; i++)
	{
		if ((C[i] - C[i + 1]) > 0) // Gewinn
		{
			numwin = numwin + 1;
			win = C[i] - C[i + 1];
			sumwin = sumwin + win;
			printf("A: %g, %g, %g\n", numwin, win, sumwin);
		}
		
		if (numwin != 0)
			avwin = sumwin / numwin;
		else avwin = 0;
	
	
		if ((C[i] - C[i + 1]) <= 0) // Verlust
		{
			numlose = numlose + 1;
			lose = -1 * (C[i] - C[i + 1]);
			sumlose = sumlose + lose;
			printf("B: %g, %g, %g\n", numlose, lose, sumlose);
		}
	
		if (numlose != 0)
			avlose = sumlose / numlose;
		else
			avlose = 0;
		printf("C: %g\n", avlose);
	}
	
	percentwin = numwin / lookback; // Prozentsatz steigender Bars
	printf("D: %g\n", percentwin);
	printf("avwin: %g\n", avwin);

	if ((avlose AND avwin) != 0)
		riskpercent = (percentwin - ((1 - percentwin) / (avwin / avlose)));
	else
		riskpercent = 0; // Kelly Formel
	printf("E: %g\n", riskpercent);
	

	// Berechnung der Aktienanzahl für das definierte Risikokapital
	if (avlose > 0)
		{
			sharestohold = ceil(kap * riskpercent / avlose);
			printf("K: %g\n", sharestohold);
		}
	
	ind1 = sharestohold;
	ind2 = 100*riskpercent;
	ind3 = avlose*numlose;
	ind4 = avwin*numwin;
		
	ChartType = ParamList("Chart Type", "SharesToHold|KellyPercent|Lose/Win"); //

	if (ChartType == "SharesToHold") // 
	{
		Plot(ind1, "SharesToHold", colorWhite, styleLine );
	}

	if (ChartType == "KellyPercent") // 
	{
		Plot(ind2, "KellyPercent", colorAqua, styleLine );
	}
	
	if (ChartType == "Lose/Win") // 
	{
		Plot(ind3, "%lose*avglose", colorRed, styleLine );
		Plot(ind4, "%win*avgwin", colorGreen, styleLine );
	}
}

[nsm51]

I could not read your whole code,
but when i do

printf("\n %s %s %s %s", typeof(ind1), typeof(ind2), typeof(ind3), typeof(ind4));

the output is

number number number number

It is clear that somehow you are not doing Array processing and AB works on all bars

for (i = 0; i < lookback - 1; i++)

something wrong here too as lookback is only 54.

Hope an expert can guide you better.

[fxshrat]

Your output is not an array but number.
To get type of var you may use typeof operator:
printf( "Type of var: %s", typeof(your_var) );

Please read docs about difference of array and number.

Understanding how AFL works

In order to get resulting array in Barcount loop you have to use subscipt operator [ i ].
But your summing variables result in numbers e.g. see sumwin.
Also you did not iterate BarCount but lookback.

As aside at some cases you look forward see C[i + 1]
To look backward it is rather C[i - 1]
You seem to come from Easy Language platform.

---

Anyway you do not need loop!
Simply apply array processing.

lookback = 54;

diff = C-Ref(C,-1);
win = diff>0;
loss = NOT win;

sumwin = Sum(IIf(win, diff, 0), lookback);
numwin = Sum(IIf(win, 1, 0), lookback);
avgwin = SafeDivide(sumwin,numwin);

sumloss = Sum(IIf(loss, diff, 0), lookback);
numloss = lookback-numwin;
avgloss = SafeDivide(sumloss,numloss);

And FYI, before some guys intend to scream "ERROR!!". SafeDivide is new function of AB 6.35.

[swbo1810]

Thank you works now fine.