Sparse Principal Component Analysis via Fractional Function Regularity

Table 2

The parameters selection in experiments and the results, where N represents no sparse loadings of PC1 or PC2 have been obtained and NaN means not a number as the MATLAB experimental result shows. 3.5 denotes the numbers changing from the number 3.5 to 4.0 increasing by 0.1 each time.

	0.001	0.010	0.100	1.000
0.001	N	N	N	N
0.01	N	N	N	N
0.13.1	N	N	N	N
3.23.4	N	N	N	NaN
3.5	NaN	NaN	NaN	NaN