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Table 2 The discriminative power of top 15 triplet elements. The discriminative power of the triplet element features that distinguish pre-miRNAs from other similar hairpins are calculated using the F value and the 15 most discriminative triplet elements are listed here. The μ+, μ- and σ+, σ- are the means and standard deviations of the elements in the two classes estimated with the training dataset

From: Classification of real and pseudo microRNA precursors using local structure-sequence features and support vector machine

Triplet elements Pre-miRNAs Other hairpins  
  μ + σ + μ - σ - F
A((( 0.121 0.042 0.063 0.032 0.792
U((( 0.154 0.048 0.089 0.040 0.734
C... 0.006 0.011 0.025 0.030 0.475
A... 0.008 0.014 0.025 0.025 0.429
U... 0.007 0.011 0.021 0.023 0.397
G.(( 0.042 0.025 0.063 0.031 0.383
C(.. 0.009 0.011 0.019 0.017 0.353
C((. 0.032 0.022 0.048 0.027 0.329
A(.. 0.011 0.012 0.020 0.016 0.316
G((( 0.151 0.038 0.127 0.040 0.303
A..( 0.013 0.013 0.022 0.019 0.295
G... 0.006 0.011 0.014 0.019 0.289
G(.. 0.007 0.010 0.014 0.015 0.266
G((. 0.040 0.020 0.050 0.024 0.231
C((( 0.119 0.030 0.105 0.034 0.230