A New Mixed Estimator in Nonparametric Regression for Longitudinal Data

Table 1

Comparison of the values of GCV based on variations in number of time points.

Number of time points	Number of knots	Number of oscillations		GCV
5	1	1	10.0000	4.9326
		2	8.7755	4.9349
		3	0.8163	4.0640
		4	10.0000	4.9211
	2	1	10.0000	5.9051
		2	0.2041	5.9128
		3	0.8163	4.7601
		4	10.0000	5.9013
10	1	1	0.2041	3.8454
		2	10.0000	3.8051
		3	0.8163	2.7655
		4	10.0000	3.8482
	2	1	0.2041	4.1491
		2	10.0000	4.1060
		3	0.8163	2.9306
		4	10.0000	4.1519
15	1	1	0.2041	3.8133
		2	7.9592	3.8207
		3	0.8163	2.5196
		4	10.0000	3.8124
	2	1	0.2041	3.9663
		2	5.1020	3.9717
		3	0.8163	2.5693
		4	10.0000	3.9660