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Table 2 Accuracies depending on different alignment features.

From: RNAstrand: reading direction of structured RNAs in multiple sequence alignments

    c = 0  
alignment feature N A A + A -
N S = 2 4487 0.824 0.829 0.819
N S = 3 5311 0.833 0.830 0.837
N S = 4 6388 0.828 0.830 0.827
N S = 5 7234 0.797 0.805 0.789
N S = 6 7500 0.832 0.835 0.829
50 ≤ sequence identity < 70 13187 0.799 0.799 0.799
70 ≤ sequence identity < 80 12152 0.827 0.832 0.823
80 ≤ sequence identity < 90 5550 0.865 0.871 0.859
90 ≤ sequence identity < 100 31 0.903 0.871 0.935
40 ≤ length ≤ 100 11191 0.768 0.773 0.763
101 ≤ length ≤ 200 14180 0.853 0.856 0.851
201 ≤ length ≤ 300 1697 0.637 0.641 0.634
301 ≤ length ≤ 400 3852 0.945 0.945 0.945
all alignments 30920 0.822 0.825 0.819
  1. Performance of RNAstrand depending on various alignment features, i.e. number of sequences (N S ), sequence identity and alignment length. N : number of alignments in the test sets, A: accuracy, which is defined as the fraction of correctly classified input alignments, A+: accuracy of alignments in reading direction of ncRNA, A-: accuracy of reverse complementary alignments.