WilliamsR indicator error

[Majorshi]

I try to use WilliamsR indicator in my strategy, however, I received an error message when compiling it.

CrossAbove(WilliamsR(9)[0], -80.00, 2)

error message: the best overloaded method match for my strategy has some invalid arguments

[NinjaTrader_RyanM1]

Hello Majorshi,

For crossing methods, one of the inputs must be a series. Yours should compile after removing the [0].

CrossAbove(WilliamsR(9), -80.00, 2);