| SMAPE | R Documentation | 
Symmetric mean absolute percentage error
SMAPE(ts1, ts2, Cent = 0, Sc = 1)
| ts1: | series 1 | 
| ts2: | series 2 | 
| Cent: | center | 
| Sc: | scale factor | 
Gianluca Bontempi gbonte@ulb.ac.be
https://en.wikipedia.org/wiki/Symmetric_mean_absolute_percentage_error
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