Performance query

[pjsmith]

Hi,

I've a few indicators that use other functions (or indicators), in the following manner

for example

temp = SMA(Volumes[0], 50)[0];

This might be called quite often (on price change for example).

I also have coded in some of the indicators, in a different way

for example, in declarations

private SMA SMA1;
SMA1 = SMA(Volumes[0], 50);

The access is via

SMA1[0];

So, my general query is, and basically just looking for your opinion, which is the most efficient to use, if being called regularly?

My thoughts were that the first results in the whole SMA calculation and series being evaluated each time. The second keeps it up to date on the fly, but at the cost of keeping the series in memory?

Is there a difference?
Which method would you recommend?

Thanks!

[NinjaTrader_Jim]

Hello pjsmith,

Thanks for your inquiry.

If you are calling the indicator multiple times, it would be a best practice to store a reference to that instance of an indicator rather than calling the indicator method multiple times.

This is outlined in the NinjaScript Best Practices page of the help guide. I'll provide a link to this publicly available resource below.

NinjaScript Best Practices (Performance) - https://ninjatrader.com/support/help...tm#Performance

Please let us know if you have any additional questions.