Error on double creation

[elliot5]

private double BollingerESupper;


BollingerESupper = Bollinger(8,1.3,25).Upper[0]; based on series 8 array, 1.3 SD, 25 period, upper.



Compile error "best overload method does not match.... has some invalid arguements"
Compile error "Cannot convert to INT from Iseries Double"

????

Regards and thanks

[Tasker-182]

Try BollingerESupper = Bollinger(Closes[8],1.3,25).Upper[0];

[NinjaTrader_BrandonH]

Hello elliot5,

Thanks for writing in.

This error message means that you are not using the correct arguments when calling the Bollinger() method.

You are passing an int argument '8' in for the Bollinger() method when it calls for a Series<double> argument.

Bollinger(ISeries<double> input, double numStdDev, int period).Upper[int barsAgo]

As Tasker-182 said, If you would like to use the Close price 8 bars ago, you could pass in Close[8] into your Bollinger() method.

See this help guide page for more information about the Bollinger() method and sample code: https://ninjatrader.com/support/help...nger_bands.htm

See this help guide page for more information about Series<double> variables: https://ninjatrader.com/support/help...t8/seriest.htm

Let me know if I may assist further.

[elliot5]

Yes thanks that works - in the NT reference there was no indication to use the Closes text. Thanks guys for helping me understand it better.