Go Back   NinjaTrader Support Forum > NinjaScript Educational Resources > Reference Samples

Reference Samples Official NinjaScript reference code samples

Thread Tools Display Modes
Old 08-30-2010, 02:47 PM   #1
NinjaTrader Product Manager
NinjaTrader_JoshP's Avatar
Join Date: May 2007
Location: Denver, CO
Posts: 17,459
Thanks: 1
Thanked 390 times in 108 posts
Default Indicator: Ensuring indicator plots are valid before programmatically accessing them

When accessing NinjaScript indicators in other scripts it is important to check if the hosted indicator's plot values are already set prior to use in the hosting script. This check ensures that proper values are always used and that irrelevant values do not throw off the script logic. This reference sample demonstrates how to run these checks in a hosting indicator by checking another hosted indicator for set plot values.

Another example for when you would want to use this is if you were trying to access the Pivots indicator, but did not have enough days loaded to properly calculate those values yet. Basing logic on the Pivots in such a scenario would yield values that are not useful and can be detrimental if not handled correctly in your code.

Key concepts in this example:
  • Checking indicator plots for valid values
  • Handling logic for when the indicator plots are not valid

Attached archive contains two indicator files.
  • SampleEveryNBarTest is the hosting indicator
  • SampleEveryNBar is the hosted indicator

Note: When hosting an indicator in an Indicator column in the Market Analyzer you will need to manually ensure enough bars back are loaded for the indicator to calculate correctly.

Important related documentation:

NinjaTrader 8
NinjaTrader 7
Import instructions:

NinjaTrader 8
  1. Download the file contained in this thread to your PC desktop
  2. From the Control Center window, select the menu Tools > Import > NinjaScript
  3. Select the downloaded file

NinjaTrader 7
  1. Download the file contained in this thread to your PC desktop
  2. From the Control Center window, select the menu File > Utilities > Import NinjaScript
  3. Select the downloaded file and click Import.
Attached Files
File Type: zip SampleEveryNBarTest_NT8.zip (2.9 KB, 977 views)
File Type: zip SampleEveryNBarTest_NT7.zip (3.7 KB, 903 views)
Last edited by NinjaTrader_Jesse; 06-25-2015 at 11:07 AM.
NinjaTrader_JoshP is offline  
Reply With Quote
The following 4 users say thank you to NinjaTrader_JoshP for this post:

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Accessing indicator values without plots suprsnipes Indicator Development 1 08-25-2010 05:23 AM
Indicator Accessing Indicator Where User Has Set Parameters dkrumholz Indicator Development 1 04-27-2010 02:56 PM
Accessing variable from a 5min Indicator and 15min Indicator mefTrader Platform Technical Support 8 01-12-2010 10:14 AM
Accessing Multiple Custom Indicator Plots within a Strategy whitmark Strategy Development 15 03-28-2009 04:21 PM
Indicator: Exposing indicator values that are not plots NinjaTrader_JoshP Reference Samples 0 01-15-2008 03:27 AM

All times are GMT -6. The time now is 04:24 PM.

Futures, foreign currency and options trading contains substantial risk and is not for every investor. An investor could potentially lose all or more than the initial investment. Risk capital is money that can be lost without jeopardizing ones financial security or lifestyle. Only risk capital should be used for trading and only those with sufficient risk capital should consider trading. Past performance is not necessarily indicative of future results. View Full Risk Disclosure.

CFTC Rules 4.41 - Hypothetical or Simulated performance results have certain limitations, unlike an actual performance record, simulated results do not represent actual trading. Also, since the trades have not been executed, the results may have under-or-over compensated for the impact, if any, of certain market factors, such as lack of liquidity. Simulated trading programs in general are also subject to the fact that they are designed with the benefit of hindsight. No representation is being made that any account will or is likely to achieve profit or losses similar to those shown.

This website is hosted and operated by NinjaTrader, LLC (“NT”), a software development company which owns and supports all proprietary technology relating to and including the NinjaTrader trading platform. NT is an affiliated company to NinjaTrader Brokerage (“NTB”), which is a NFA registered introducing broker (NFA #0339976) providing brokerage services to traders of futures and foreign exchange products. This website is intended for educational and informational purposes only and should not be viewed as a solicitation or recommendation of any product, service or trading strategy. No offer or solicitation to buy or sell securities, securities derivative or futures products of any kind, or any type of trading or investment advice, recommendation or strategy, is made, given, or in any manner endorsed by any NT affiliate and the information made available on this Web site is not an offer or solicitation of any kind. Specific questions related to a brokerage account should be sent to your broker directly. The content and opinions expressed on this website are those of the authors and do not necessarily reflect the official policy or position of NT or any of its affiliates. 

Vendors along with their websites, products and services, collectively referred to as (“Vendor Content”), are independent persons or companies that are in no manner affiliated with NT or any if its affiliates. NT or any of its affiliates are not responsible for, do not approve, recommend or endorse any Vendor Content referenced on this website and it’s your sole responsibility to evaluate Vendor Content. Please be aware that any performance information provided by a vendor should be considered hypothetical and must contain the disclosures required by NFA Rule 2-29(c). If you are interested in learning more about, or investigating the quality of, any such Vendor Content you must contact the vendor, provider or seller of such Vendor Content. No person employed by, or associated with, NT or any of its affiliates is authorized to provide any information about any such Vendor Content.