Given the following:



I'm left wondering why "No such function" and why has the compiler flagged only certain instances?

Any thoughts?

Thanks in advance...

OK...I figured out the error..."noob" that I am, I was confusing a variable with a function...as a result I've gone back and totally rewritten the code to properly address the situation... As a result of the rewrite, I now face another issue, namely brackets cannot be used with a function to reference a prior period...



So while I'm still wondering why the compiler flagged only certain instances of the "no such function" error, now, in addition, I'm hoping there is a way around the invalid statement - prior period brackets issue... Any thoughts?

Thanks in advance...

For those whom might be interested, here's the solution to the bracket issue:

 

Code

high(period="day")[1]; #(array reference after the function)

Thanks to Derek for his assistance...