Why won't this work?: && High-Low<High-Low[1]

[flsptradr]

In the "filtering" of a trade signal, I'm trying to require the difference between the High & Low on the current bar to be LESS THAN the difference between the High & Low of the previous bar with: && High-Low<High-Low[1]
Not sure why this won't work, but I'm sure there should be a simple answer...

 

[Pensar]

@flsptradr What you are currently coding is high - low < high - low[1], which essentially is saying . . .

the current high minus the current low is less than the current high minus the previous low

What you want the code to say instead is . . .

the current high minus the current low is less than the previous high minus the previous low

So two ways to correct the code are -
1) reference the previous high back using high[1] (the previous high value) in place of the current high - high - low < high[1] - low[1]
- or -
2) use parentheses to isolate your result and then reference the previous value one bar back - high - low < (high - low)[1]

HTH