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TulipCharts / tulipindicators

Technical Analysis Indicator Function Library in C
https://tulipindicators.org/
GNU Lesser General Public License v3.0
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Polarized Fractal Efficiency indicator #107

Open jayMcBee opened 3 years ago

jayMcBee commented 3 years ago

Polarized Fractal Efficiency (PFE) is a technical indicator that was developed by Hans Hannula to determine price efficiency over a user-defined period. This indicator fluctuates between -100 and +100, with 0 as the centerline. Securities with a PFE greater than zero are deemed to be trending up, while a reading of less than zero indicates the trend is down. Polarized Fractal Efficiency's signature characteristic is its use of fractal geometry in determining how efficiently a security's price is moving.

A description of the formula is available e.g. here https://www.investopedia.com/terms/p/pfe.asp

codeplea commented 3 years ago

Do you have a primary source? And example calculations?

kpa28-git commented 1 year ago

Has there already been work on this? #68

codeplea commented 1 year ago

It's in the beta directory: https://github.com/TulipCharts/tulipindicators/blob/master/beta/pfe.c

It's likely buggy.

kpa28-git commented 1 year ago

Yup, I read up on the beta indicators in the 9.1 release issue #114 after I found that pfe was merged. Tangent: it would be interesting to note what needs to be changed/improved/tested for each of these beta implementations if it is known. That way we could know how close each one is to being able to be mainlined. Perhaps a roadmap issue for beta implementations and new requested indicators.

codeplea commented 1 year ago

The beta indicators weren't written by me. They are lacking in good documentation and testing. I also noticed that some have memory bugs. They each need a very careful analysis before I could merge them.