–22–
Spectrum of Residuals
OLSQ
In this voxel:
¥ OLSQ: definitely not ÒwhiteÓ
¥ GLSQ: ARMA appears a little ÒwhiterÓ than either AR or MA alone
Block:30s
ARMA: a=0.4 b=0.7
AR: a=0.8 b=0
MA: a=0 b=0.8