I have been looking at a NonLagMA/Tema EA originally created as a project by Aaron Peterson. It uses the SSA to filter out some of the smaller crosses. Its odd that the thread stops suddenly and little info is provided about these older indicators. Aaron Peterson does not seem to be contactable using his messaging options of over 10 years ago.
I am sure that there is scope for a successful EA, or just simple trading signals based on the NonLagMa. It is apparent that a filter is needed to deal with the periods of tight ranging that simply eat away the profits. The same with most EA's.
The Aaron Peterson group tried to use the SSA but no reports of success or failure were included in the forum. My thoughts were to utilise a much longer period NLMA to only allow trades in the direction of the current trend in a higher timeframe. Maybe another option would be Bollinger band width.
I have no coding knowledge whatsoever so am not really able to test these properly.
If you have any advice as to any other effective methods of reducing ranging losses it would be greatly appreciated.