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Arrows not plotting on price panel
Started:June 28th, 2011 (01:58 PM) by kendallw4 Views / Replies:1,125 / 2
Last Reply:June 28th, 2011 (02:44 PM) Attachments:1

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Arrows not plotting on price panel

Old June 28th, 2011, 01:58 PM   #1 (permalink)
Trading Apprentice
Raleigh, USA
Futures Experience: Intermediate
Platform: Ninjatrader
Favorite Futures: Stocks
Posts: 3 since May 2011
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Arrows not plotting on price panel

I can't seem to get the arrows to plot in the price panel. Could someone let me know what I'm missing?

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Old June 28th, 2011, 01:58 PM   #2 (permalink)
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Old June 28th, 2011, 02:44 PM   #3 (permalink)
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I am not astonished that it does not plot arrows. I am quite sure that it does not do any thing.

Here is the reason: OnBarUpdate() starts with the first bar on the chart, which is CurrentBar = 0. If you call Close[4] during the first run of OnBarUpdate(), you actually call the bar (-4), which unfortunately does not exist. Therefore the only thing that the indicator will generate is an error in your logfile.

Checking for Close[3] > Close[4] does only make sense, if the CurrentBar > 3. So you need to insert two additional lines in the beginning of OnBarUpdate()

if (CurrentBar < 4)
Furthermore, your conditions are flawed. For example look at the condition set 1:

First line -> Close[0]<Close[1]
Third line -> ((Close[0] - Low[1]) + Close[0]) > ((Close[1] - Low[1]) + Close[1])

The third line condition is equivalent to Close[0] > Close[1], which in contradiction with the first line. This means that the condition set 1 will never take the value "true" and that the arrow will never be drawn...

In a similar way the condition set 2 is flawed:

First line -> Close[0]>Close[1]
Third line -> ((Close[0] - Low[1]) + Close[0]) > ((Close[1] - Low[1]) + Close[1])

Both conditions are identical, so the third line is redundant.

I think you should rework the conditions as well.

Just because you asked.


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