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Hi,
You could change the demandline/supplyline definitions to the
following to avoid plotting them when there is a new high/low:
supplyline=IIf(x2==0,Null,LineArray(x2,y2,x3,y3,1));
demandLine=IIf(x0==0,Null,LineArray(x0,y0,x1,y1,1));
Johan
--- In amibroker@xxxxxxxxxxxxxxx, "marmal417" <marmal@xxxx> wrote:
> Yes, that's it! Now it automatically draws the most recent demand
> line. I took the liberty to add a supply line by mirroring your
code
> and making the small changes necessary, but I never understood
what I
> was doing :-) I noticed a weird thing when this indicator is
applied
> to a stock making a new all time high. If the most recent
pivothigh
> is higher than any other pivothigh in the database then a line is
> drawn from the bottom in the middle of the chart through the most
> recent pivot high. It looks really strange. Can the code be
modified
> to draw no supplyline when there are no higher pivots to draw the
> line from and draw no demand line when there are no lower pivots
to
> draw the line from?
>
> The basis for the systems I have seen based on TD Lines is that
you
> buy/cover when the supplyline is exceeded and sell/short when the
> demand line is broken. Trendlines let you know in advance the day
> before, the value of the trendline for the next trading day by
> calculating the slope of the line and adding it to today's value
of
> the line. Therefore, one can place the orders in the evening as
stop
> orders so if a line is broken during the day a position is taken.
> Anyway, I wrote the values of the lines for the next day in the
> title. I realise it's not perfect, because some lines are no
longer
> valid lines (for example a supply line that has been exceeded
etc.).
> But more on that later.
>
> There are more improvements to be made, but I think it's getting
> there :-)
> //Martin
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