Help with inner workings of FloatSeries Class

[8DTK8]

I have been having decent success working with adding a FloatSeries Class with the excellent samples in http://www.ninjatrader.com/support/f...ead.php?t=4991 .

One thing that I have come across that I had quite the time figuring out is the nature of the [bars ago] suffix and what it's actually doing.

I have an indicator that writes to the float series every on bar update.

The float series contains values that are held constant with an occasional change. Here's where it gets interesting and has been the source of headache.

When I compare this.myFloatSeries[0] to this.myFloatSeries[1], it produces the last two values that are different.

So if the series contains:
bars ago & value
[0] 5
[1] 5
[2] 5
[3] 7
[4] 7
[5] 7
[6] 7
[7] 9
[8] 9

this.myFloatSeries[0] and this.myFloatSeries[1] returns 5 and 7
similarly
this.myFloatSeries[1] and this.myFloatSeries[2] seem to return 7 and 9

It seems to be ignoring all repeated values.

If someone could tell me if this is what it is supposed to do or if my amateur/novice programming status has finally caught up with me, I would greatly appreciate it.

Thanks.