Rounding errors (IceDance worlds 2014)
I had a deeper look at S/M´s FS score from SA:
http://www.isuresults.com/results/season1718/gpusa2017/gpusa2017_Pairs_FS_Scores.pdf
I tried to calculate the PCS of 75.27 points and checked some algorithms.:gclap:
I calculated the trimmed mean of every single component, multiplied by 1.6, rounded to two and added them up and I got 75.25
I calculated the trimmed mean of every single component, multiplied by 1.6, added them up and rounded to two and I got 75.26
I calculated the trimmed mean of every single component, added them up, multiplied by 1.6 and rounded by two and I got 75.26
I calculated the trimmed mean of every single component, added them up, rounded to 2 and multiplied by 1.6 and rounded again and I got 75.26
I calculated the trimmed mean of every single component, rounded to two, added them up, multiplied by 1.6 and I got 75.26
I calculated the trimmed mean of every single component, rounded to two, multiplied by 1.6, rounded to two again and summed them up and I got 75.27!
The last algorithm should be the way the ISU is useing to sum up the components, because they want to receive a value for every single component from 0 to 10.00 which is rounded by two. But sorry. This is the worst algorithm, because you round twice! You learn this during the last years of high school.:angry1:
The ISU should find a way to create scores without rounding
I had a deeper look at S/M´s FS score from SA:
http://www.isuresults.com/results/season1718/gpusa2017/gpusa2017_Pairs_FS_Scores.pdf
I tried to calculate the PCS of 75.27 points and checked some algorithms.:gclap:
I calculated the trimmed mean of every single component, multiplied by 1.6, rounded to two and added them up and I got 75.25
I calculated the trimmed mean of every single component, multiplied by 1.6, added them up and rounded to two and I got 75.26
I calculated the trimmed mean of every single component, added them up, multiplied by 1.6 and rounded by two and I got 75.26
I calculated the trimmed mean of every single component, added them up, rounded to 2 and multiplied by 1.6 and rounded again and I got 75.26
I calculated the trimmed mean of every single component, rounded to two, added them up, multiplied by 1.6 and I got 75.26
I calculated the trimmed mean of every single component, rounded to two, multiplied by 1.6, rounded to two again and summed them up and I got 75.27!
The last algorithm should be the way the ISU is useing to sum up the components, because they want to receive a value for every single component from 0 to 10.00 which is rounded by two. But sorry. This is the worst algorithm, because you round twice! You learn this during the last years of high school.:angry1:
The ISU should find a way to create scores without rounding