Table 2. List of six vector modes that can be generated by PseRAC-General for RNA sequences.

Category	Mode
Nucleic acid composition	(1) Basic kmer (Kmer) (18)
Autocorrelation	(2) Dinucleotide-based auto covariance (DAC) (16,21)
	(3) Dinucleotide-based cross covariance (DCC) (16,21)
	(4) Dinucleotide-based auto-cross covariance (DACC) (16,21)
Pseudo nucleotide composition	(5) General parallel correlation pseudo dinucleotide composition (PC-PseDNC-General) (8)
	(6) General series correlation pseudo dinucleotide composition (SC-PseDNC-General) (8)