. 2004 Feb 25;101(2):155–161. doi: 10.1016/j.virusres.2004.01.006

Table 4.

Summary of linear regression analysis between the first two axes in CA and the nucleotide contents on the third codon position in all selected virus genes^a

Base composition	f₁′^b	f₂′^b

A_3S	0.791^****	0.085^*
T_3S	0.239^****	0.444^****
G_3S	0.484^****	0.082^*
C_3S	0.720^****	0.0001^NS
GC_3S	0.936^****	0.018^NS

NS in superscript represent non-significant.

Value in this table is the R² value of each linear regression analysis.

f₁′ and f₂′, respectively, represent the values of the first and the second axis of each gene in CA.

P-value <0.01.

^****

P-value <0.00001.