CrossUnder Argument problem

[Kicks.Spin]

i want to test SpanRSI for CrossBelow a trigger value. SpanRSI is Series<double>. SpanTrigger is double. The conditional statement below produces an error.

if (CrossBelow(SpanRSI[0], SpanTrigger, 1) )
{
Print(string.Format("CurrentBar {0} SpanRSI[1] {1:0} SpanRSI[0] {2:0} ", CurrentBar, SpanRSI[1], SpanRSI[0] ));
}

errors 1. overload method match for CrossBelow has invalid arguments
2. Argument 2 can not convert from double to ISeries<double>

The help manual specifies that an ISeries<double> is required as
CrossBelow(ISeries<double>series1,doublevalue,intlookBackPeriod)

What can be done to take a variable i create and subject it to CrossBelow? Thanks!

[NinjaTrader_PaulH]

Hello Kicks.Spin,

Thanks for your post.

You have a correct understanding from the help guide in that one of the two arguments needs to be a series. In both instances, you have a double value.

If SpanRSI is a series then SpanRSI[0] would be the current bar value (a double value) of that series.

Try: if (CrossBelow(SpanRSI, SpanTrigger, 1) )

[Kicks.Spin]

Thanks Paul. Works great. Makes sense the method would need all series values to make a crossunder comparison some n number or bars back.