Price Gap indicator

[Testrun]

Hi, I am new to programming and this is the first time I am attempting to write a program, so any help or advice is welcomed.

I am trying to build a indicator that allows me to scan for bullish and bearish price gaps whenever the indicator is loaded in NT8. Although there is no error during compilation, there seems to be some logic error thus the indicator is unable to work.

I have attached my codes for your comments. Thank you.

[NinjaTrader_ChelseaB]

Hello Testrun,

That's great you are learning programming in C#. Below I am providing a link to a forum post with helpful information about getting started with NinjaScript.

https://ninjatrader.com/support/forum/forum/ninjatrader-8/indicator-development/97575-sample-scripts?p=786040#post786040

First, confirm that there are no errors on the Log tab of the Control Center when enabling or backtesting the script.

Anytime you are uncertain about the behavior of a strategy, use prints to print the values in the conditions along with the time of the bar and enable TraceOrders.
Below is a link to a forum post that demonstrates using prints to understand behavior.

https://ninjatrader.com/support/forum/forum/ninjatrader-7/strategy-development-aa/99209-date-conditions-not-working?p=791121#post791121

One mistake I think see is that invalid indexes can be used.

Open[i] can be called with i having a value of 1000 on the very first bar as there is no check to ensure the index is greater than CurrentBar.

https://ninjatrader.com/support/helpGuides/nt8/make_sure_you_have_enough_bars.htm

[Testrun]

Hi ChelseaB,
thank you. Let me go through the resource link to understand more about Ninjascript before starting on the script again.

Thanks for pointing out the mistake on the invalid index.

[JCS32092]

Did you ever get this to work properly?

[Testrun]

Hi JCS32092,
i looked at some of the sample indicator codes and realise that the code is much more complicated than I thought. Given I have no programming background, I have given up on programming it. Hopefully some day someone do up something similar to share.