I am trying to find the second-highest high, every 42 days (every couple months).

If I use plot x = highest(high,42), that gives me the "first-highest" high, but that's not what I want.
Can anyone help?

Is the 42 days always taken back from the current day? What happens in the previous 42 days set? Is there a second high for each set of 42 days looking back from current day?

I assume you dont want to do it manually by looking at the charts and drawing a line at the 2nd high?, ur lookin for a way to set the 2nd high automatically, correct?

I'm pretty rusty on thinkscript, but this may at least give you seomthing to work on:

 

Code

def h42 = highest(high,42); plot 2h42 = fold i = 0 to 42 with price = Double.NaN while IsNaN(price) do if getValue(high, i, 42) < h42 then getValue(high, i, 42) else Double.NaN;