Logarithm and Square root?

can we have some usage samples of these two please?

these functions were added at user’s request, they are simple mathematical functions with a simple input and output

I’m not sure how they can apply to trading, but why not having it there.

hopefully the user who requested them can give us an example.

I’m using them as part of different trailing stop breakeven calculations instead of just a linear or ATR based training stop, I would love to see these additional Dynamic Stop loss functions in Strategy Quant down the track, hopefully with the new upcoming version I should be able to implement them as plugins when its released. 

I’m a member of the Asirikuy forums and these Dynamic SL functions are part of their machine learning system pKantu, which is similar to StrategyQuant but SQ better 🙂 with good success on the generated EA’s

So how the dynamic stop will reach breakeven will depend on what function is configured (in a nutshell).

Linear  SL: ax + breakeven

log SL: alog(x) + breakeven

parabolic SL: ax^2 + breakeven

Sqr Root SL:  aSqr(x) + breakeven

where breakeven is the number of candles you want breakeven to occur, I won’t attached mathematical graphs of the functions here, but do a search for each of the functions mathematical graphs and you’ll see what theyshould do and you’ll get an idea of how they would perform as a dynamic SL.

BTW thanks for implementing these addition maths Marc.

may we have a sample or two, to see how its put together?