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[portfoliobuilder]

@schling there was a similar topic looking for Higher highs.

Bars since higher or equal value

Since your original algorithm needs two nested loops AND inner loop does NOT have fixed length (known in advance) then it is difficult to write pure array code. Additional problem with this particular algorithm is that the inner loop works backwards (from newest to oldest) which is not natural direction of array processing functions. So solution needs some trickery (reversing arrays). General array solution would be twisted, and probably not worth the effort, but in your case, in your example …

If this is what you are looking for, perhaps you can alter this with the appropriate functions and inputs for Lower Lows
https://www.amibroker.com/guide/afl/lowestsincebars.html