Displaying 2 results from an estimated 2 matches for "smape".
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2012 Jun 01
0
help to find or fix a SMAPE (Symmetric mean absolute percentage error ) with correction to avoid zero value in the series
Dear Researchers,
I am looking for a library or a function to calculate SMAPE with same
doneminator to avoid a problem to the presence of 0 values in the series.
I find this variotion of SMAPE called mSMAPE
mSMAPE page 13
http://www.stat.iastate.edu/preprint/articles/2004-10.pdf
yesterday nigth i tried to create a function but without a good result. For
this reason I wis...
2012 May 31
0
function to calculate a SMAPE (Symmetric mean absolute percentage error) to avoid the possibility of an inflation caused by zero values in the series
Dear Reseacher,
i find this modified version of SMAPE at pag 13 formula "msSMAPE" to to
avoid the possibility of an inflation caused by zero values in the series
using a Si component in the denominator of the symmetric MAPE
http://www.stat.iastate.edu/preprint/articles/2004-10.pdf
I wrote a function but I wish eventually correct error, cha...