-5
0
5
10
15
0
5
10
15
20
25
30
35
Displacement (mm)
Fraction
eNAL in 4
th
week: establishment of correction vector
:
initial eNAL measurement (NAL)
:
weekly eNAL measurement
:
correction undone
linear regression line
New eNAL correction
prediction of correction for next week:
linear regression instead of average