Table 2.
Selected feature set
| No. | encoding* | metabolite ratio | No. | encoding | metabolite ratio |
|---|---|---|---|---|---|
| 1 | arctan (1/7)* | M-1/ncm5U | 23 | arctan (20/3) | X/ψ |
| 2 | arctan (1/12) | M-1/m1A | 24 | arctan (20/35) | X/ms2t6A |
| 3 | arctan (2/21) | DHU/SAH | 25 | arctan (21/30) | SAH/m22G |
| 4 | arctan (3/18) | Ψ/m3U | 26 | arctan (22/30) | m1I/m22G |
| 5 | arctan (5/7) | C/ncm5U | 27 | arctan (23/18) | m1G/m3U |
| 6 | arctan (5/11) | C/AICA riboside | 28 | arctan (25/5) | ac4C/C |
| 7 | arctan (6/18) | acp3U/m3U | 29 | arctan (25/10) | ac4C/m3C |
| 8 | arctan (6/19) | acp3U/N6-SAR | 30 | arctan (25/22) | ac4C/m1I |
| 9 | arctan (8/23) | M-3/m1G | 31 | arctan (26/28) | m2G/ms2io6A |
| 10 | arctan (9/21) | U/SAH | 32 | arctan (26/30) | m2G/m22G |
| 11 | arctan (11/5) | AICA riboside/C | 33 | arctan (27/13) | M-4/2,5-PCNR |
| 12 | arctan (11/33) | AICA riboside/MTA | 34 | arctan (28/19) | ms2io6A/N6-SAR |
| 13 | arctan (12/10) | m1A/m3C | 35 | arctan (29/34) | m2,2,7G/m6t6A |
| 14 | arctan (12/18) | m1A/m3U | 36 | arctan (29/35) | m2,2,7G/ms2t6A |
| 15 | arctan (13/9) | 2,5-PCNR/U | 37 | arctan (30/21) | m22G/SAH |
| 16 | arctan (13/20) | 2,5-PCNR/X | 38 | arctan (31/2) | mcm5s2U/DHU |
| 17 | arctan (14/21) | m7G/SAH | 39 | arctan (31/24) | mcm5s2U/293 |
| 18 | arctan (14/26) | m7G/m2G | 40 | arctan (33/11) | MTA/AICA riboside |
| 19 | arctan (16/22) | 3,4-PCNR/m1I | 41 | arctan (33/17) | MTA/m61A |
| 20 | arctan (18/10) | m3U/m3C | 42 | arctan (33/34) | MTA/m6t6A |
| 21 | arctan (18/21) | m3U/SAH | 43 | arctan (34/12) | m6t6A/m1A |
| 22 | arctan (19/30) | N6-SAR/m22G | 44 | arctan (34/19) | m6t6A/N6-SAR |
Feature set for best classification performance.
*Numbering of arctan encoding combinations consistent with table 1. For metabolite abbreviations, please refer to Table 1.