Keltner channel and bollinger midline not lining up

[acdrew0]

When running both keltner channel and bollinger bands in the same chart with the same Period parameter(20), the two midlines do not line up.

I am assuming that the midlines should be the same calculation with the simple average.

How can I fix this?

[koganam]

When running both keltner channel and bollinger bands in the same chart with the same Period parameter(20), the two midlines do not line up.

I am assuming that the midlines should be the same calculation with the simple average.

How can I fix this?

Pull up your DataBox and cross-check if the actual values match. You may be seeing a drawing artifact.

[NinjaTrader_Matthew]

Please check as koganam has suggested.

If you can provide a screen shot, this should help us identify what you're seeing.

[acdrew0]

Just checked. There are differences between the midlines in the data box.

The difference is usually quite small. It is correct sometimes and about 1 tick or so off at a fair few places. But I'm confused why there is any in the first place.

[acdrew0]

Here is an attached screenshot with databox.

[NinjaTrader_Matthew]

Reviewing this, the Keltner uses the Typical price to calculate the middle SMA line, while the Bollinger uses the closing price.

//Keltner
double middle	= SMA(Typical, Period)[0];

//Bollinger

double smaValue    = SMA(Period)[0];

You can review the logic used to calculate these indicators by going to Tools--> Edit NinjaScript--> Indicator.

[acdrew0]

Thanks, that helped. I deleted typical from the code in that line and now the keltner seems to be working as I would have expected.

I'm not very good with C# yet, do you think this deletion would affect anywhere else in the indicator?

[NinjaTrader_Matthew]

Hello,

Its going to change how the bands are calculated since they're offset from the middle line, but if you prefer this to be calculated from the Close price, it shouldn't cause any problems for you.

[acdrew0]

Sounds good. Thanks.