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 Apr 15 awarded Famous Question Feb 25 awarded Notable Question Jul 2 awarded Curious May 10 awarded Popular Question Apr 22 awarded Popular Question Jan 6 awarded Popular Question Sep 27 awarded Notable Question Feb 8 awarded Yearling Feb 2 awarded Popular Question Oct 20 accepted What is the denominator in calculating daily range as a percentage? Oct 20 comment What is the denominator in calculating daily range as a percentage? The open makes the most sense as a point of reference. If you observe the range over the last n days, then the open of the first day is the denominator. (Hi - Lo) / Open. Oct 13 comment What is the denominator in calculating daily range as a percentage? SRKX: The second method divides two numbers that are directly calculated. The first method takes those same numbers and adds a third number for which care must be taken that it is the correct one. The open 12-days ago, for an n=12 calculation, can be confused with 11 or 13 and then the calculation would be wrong. The second method adds complexity that is prone to OBO error. Oct 13 asked What is the denominator in calculating daily range as a percentage? Aug 27 accepted What programming language is best suited for implementing DeMark? Aug 27 comment What programming language is best suited for implementing DeMark? I appreciate the pattern matching approach over iteration. This is what I was looking for. A 'different' way of conceptualizing problems. Thanks for the code. (which I still need to fully comprehend). Aug 22 comment What programming language is best suited for implementing DeMark? Readability is an important aspect of implementation, because it makes it easier to see if you have it right or not. Demark can get quite complex and nested if/else control flows can become Gordian. Thanks for the concept of 'pattern matching'. Can you show a code snippet of OCaml or F# similar to my R snippet? Aug 17 revised What programming language is best suited for implementing DeMark? added R example code Aug 17 comment What programming language is best suited for implementing DeMark? I wouldn't touch Excel with a 10-foot algorithm. Also not adverse to becoming better acquainted with a tool (language) if it makes the job more funner. I would also think OO would be a bit verbose and ugly. But not convinced imperative trumps declarative. Or that functional wouldn't be a really good fit. Aug 17 asked What programming language is best suited for implementing DeMark? Jul 15 awarded Nice Question