Some clarifications on Indicators

[skyholder84]

Hi,

I am seeking some clarification on indicators:

1) Momentum indicators exist in two forms. Momentum can either be expressed as a numerical difference or a percentage difference between prices. Which form does the momentum indicator provided in Ninjatrader take? I need the percentage difference version, and I was hoping it was available.

2) What are the base units of the newly added slope indicator? Is it expressed in dP/dT? Ie: something similar to the momentum indicator?

3) I would like to find values for an indicator (the 20SMA for example) over three different time frames (10m, 30m, 1hr etc), and trade only when the price is above all three 20SMA values. Is there a way I can do this in the strategy wizard? I can't figure out how.

I believe that finding the different values of the same indicator using different time intervals can be achieved using the Bars method, but I don't see anywhere in the strategy wizard where I can add or remove bars. I understand that price data on the same security are assigned different bar index numbers based on intervals. Is there a way to add all the relevant timeframe bars via the wizard and use them differentially within the condition builder? (Does the answer lie in the inputseries parameter?)

Is there also a way to check which bar represents which timeframe, or which is the primary bar?

4) Can I specify a list of instruments traded under a strategy from the strategy wizard? I don't see an option within the wizard. Do I need to edit the code to do so?

5) Lookback period vs Bars Ago. In what way are they different? Am I right to say that "bars ago" compares the current bar with just the T-n bar (where n is specified by the user), whereas "lookback period" applies to all the bars in between the current bar [0 bars ago] and the last bar specified in the lookback period?

6) For the offset parameter in the strategy builder, can I set the offset value as a negative value rather than a positive one?

Thank you so much for your help!

[NinjaTrader_Brett]

Hello,

Thank you for your note.

I have copied your questions and put there answers below:

1) Momentum indicators exist in two forms. Momentum can either be expressed as a numerical difference or a percentage difference between prices. Which form does the momentum indicator provided in Ninjatrader take? I need the percentage difference version, and I was hoping it was available.

This works on Prices. Percentage Difference would need to be custom coded.

You can contact one of our NinjaScript consultants to assist you with coding this or you can use our NinjaScript guide and forums to code this indicator yourself if you are a programmer.

NinjaScript Consultants:
http://www.ninjatrader.com/webnew/partners_onlinetrading_NinjaScript.htm
NinjaScript Help Guide:
http://www.ninjatrader-support.com/HelpGuideV6/Overview17.html




2) What are the base units of the newly added slope indicator? Is it expressed in dP/dT? Ie: something similar to the momentum indicator?

I do not have this slope indicator in my NinjaTrader. To what are you refering too here?

3) I would like to find values for an indicator (the 20SMA for example) over three different time frames (10m, 30m, 1hr etc), and trade only when the price is above all three 20SMA values. Is there a way I can do this in the strategy wizard? I can't figure out how.

I believe that finding the different values of the same indicator using different time intervals can be achieved using the Bars method, but I don't see anywhere in the strategy wizard where I can add or remove bars. I understand that price data on the same security are assigned different bar index numbers based on intervals. Is there a way to add all the relevant timeframe bars via the wizard and use them differentially within the condition builder? (Does the answer lie in the inputseries parameter?)

Is there also a way to check which bar represents which timeframe, or which is the primary bar?

This is not possible in the strategy wizard. This is possible with NinjaScript however it would take custom coding.

http://www.ninjatrader-support.com/HelpGuideV6/MultiTimeFrameInstruments.html

4) Can I specify a list of instruments traded under a strategy from the strategy wizard?I don't see an option within the wizard. Do I need to edit the code to do so?

This would also require multi instrument programming as by default only one strategy can run on one instrument unless you hard code it into one strategy to pull in multiple instruments and trade them using the link above.

5) Lookback period vs Bars Ago.In what way are they different? Am I right to say that "bars ago" compares the current bar with just the T-n bar (where n is specified by the user), whereas "lookback period" applies to all the bars in between the current bar [0 bars ago] and the last bar specified in the lookback period?

Yes this would be correct.

6) For the offset parameter in the strategy builder, can I set the offset value as a negative value rather than a positive one?

Yes this is possible.

Let me know if I can be of further assistance.

[skyholder84]

Hi Brett, thanks very much for the prompt reply.

By slope, I meant this Slope() indicator. It was added to the version 7 arsenal of indicators I believe. It seems like a momentum-type indicator, and I was wondering if more light could be shed on it.

http://www.ninjatrader-support.com/HelpGuideV6/helpguide.html

I was also wondering if there was a data service which provides a package for Forex data (Historical and Live) alone, since I do not plan to trade Equities or futures just yet. Kinetick does not offer FX feeds alone, and any trader concentrating only on FX will still have to end up paying at least $75 for a basic package. I was wondering if there was a more economical alternative for FX quotes alone?

Your help is very much appreciated.

[NinjaTrader_Brett]

Hello,

Got it, Slope is actually not an indicator. It is a method.

http://www.ninjatrader.com/support/helpGuides/nt7/slope.htm

I do not know of any data feed providers that focus on just Forex. An alternative would be to open an account with GAIN to get free data from GAIN with your live account.

I have included information below on how to obtain discounted rates and free trials from the following datafeed providers.
Kinetick (Our Preferred Data Feed Service Built Specifically for NinjaTrader 7)
www.kinetick.com

Barchart.com (subscriptions starting at $45/monthly):

https://www.barchart.com/register/realtime/?ID=NJA

IQFeed offers a 7-day free trial for NinjaTrader users.

https://www.iqfeed.net/ninjatrader/index.cfm?displayaction=start&promo=1717496

eSignal promotional rate for NinjaTrader clients:

http://www.ninjatrader.com/webnew/eSignalSpecialNinja08.pdf

Let me know if I can be of further assistance.