Bug in Indicator Color Bars

[pawnbroker]

There is an issue with an indicator I am developing to colour the volume bars, in which no bars are plotted for the indicator if I compare a current value to a historic value. When this occurs, the indicator panel just shows the background colour and the data panel shows the plot names for the indicator, but no values.

This problem does not occur on a 15 minute chart, but it does on a daily chart.


The issue can be reproduced by compiling a new indicator, which is an exact copy of the code from the built in indicator VolumeUpDown, with each occurrence of the string VolumeUpDown renamed to VolumeTest.

In VolumeTest, change line 41 to

if (Close[0] >= Close[1])

In VolumeUpDown, the same line number reads

if (Close[0] >= Open[0]).

If I change line 41 to read the same as the line in VolumeUpDown the bars plot OK, which confirms that the rest of the code is OK.

Is this is bug or am I doing things in the wrong way?



Windows 7 64 bit, up to date with patches
NT version 7.0.1000.10
.NET/CLR Version: 2.0.50727.5456

[NinjaTrader_Matthew]

Hello,

Are you getting any errors on the log tab of the Control Center?

You're likely running into an issue explained in the following forum post from our Tips section:

http://www.ninjatrader.com/support/forum/showthread.php?t=3170

Please try adding the following snippet to the beginning of your code in OnBarUpdate()

if (CurrentBar < 1)
return;

You need to ensure you have enough bars on the chart to calculate correctly.

[pawnbroker]

That does fix the problem. Many thanks.