|08-30-2010, 02:47 PM||#1|
NinjaTrader Product Manager
Join Date: May 2007
Location: Denver, CO
Thanked 219 times in 88 posts
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:
Attached archive contains two indicator files.
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:
Last edited by NinjaTrader_Jesse; 06-25-2015 at 11:07 AM.
|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||Market Analyzer||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_Josh||Reference Samples||0||01-15-2008 03:27 AM|