A Time-Varying Seasonal Autoregressive Model-Based Prediction of Respiratory Motion for Tumor following Radiotherapy

Table 2

Characteristics of data sets tested. The sampling frequency is 30 Hz for all the data sets.

	Axis	Case number
		No. 1	No. 2	No. 3
Max. amplitude of respiration cycle max|𝑦(𝑡)| (mm)	LR	1.1409 mm	0.8268 mm	1.1748 mm
	CC	7.6957 mm	9.4093 mm	8.3144 mm
	AP	1.9169 mm	1.7538 mm	1.7833 mm
Standard deviation of time series 𝜎𝑦 (mm)	LR	0.3351 mm	0.2064 mm	0.2475 mm
	CC	3.6548 mm	3.9511 mm	3.8863 mm
	AP	0.622 mm	0.6179 mm	0.6743 mm
Average period of breathing cycle 𝑠/𝐹𝑠 (s)		3.0341 s	2.9681 s	3.0341 s
Length of time series (s)		116.7 s	107.6 s	130.0 s