[PD] smoothing: single, double and triple

[Hans-Christoph Steiner]

Hey all,

I just made some new mapping objects for smoothing and getting the  
trend, based on statistical methods (single, double, and triple  
exponential smoothing).  I got the inspiration from Fredrik  
Olofsson's f0.smooth object for Max/MSP.

While they are not the best smoothing algorithms for most sensor data  
streams, IMHO, they could be useful in certain circumstances.  They  
seem to smooth a lot, and add some latency, but I don't have any hard  
figures on that stuff.

I attached a zip with patches and help files, plus they'll be in Pd- 
extended builds in the mapping library as of tomorrow.

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