Table 4.
3D PCA results for MAGMA.
| Method | PC3(1) | PC3(2) | PC3(3) | PC3 | PC3 |
|---|---|---|---|---|---|
| log(Mstar/M⊙) | log(SFR/M⊙ yr−1) | std. dev. | variance | ||
| (1) | (2) | (3) | (4) | (5) | (6) |
| 12 + log(O/H) | |||||
| PCA | 0.346 | −0.169 | −0.923 | 0.127 | 0.015 |
| PPCA | 0.29 ± 0.02 | −0.11 ± 0.03 | −0.95 ± 0.01 | 0.14 | 0.02 |
| BSPCA | 0.34 ± 0.02 | −0.17 ± 0.03 | −0.92 ± 0.01 | 0.13 | 0.02 |
| log(MHI/M⊙) | |||||
| PCA | 0.700 | −0.704 | −0.122 | 0.264 | 0.047 |
| PPCA | 0.69 ± 0.03 | −0.71 ± 0.04 | −0.12 ± 0.07 | 0.29 | 0.06 |
| BSPCA | 0.70 ± 0.03 | −0.70 ± 0.05 | −0.13 ± 0.08 | 0.26 | 0.05 |
| log(MH2/M⊙) | |||||
| PCA | 0.680 | −0.730 | −0.061 | 0.267 | 0.048 |
| PPCA | 0.55 ± 0.20 | −0.68 ± 0.19 | 0.31 ± 0.25 | 0.29 | 0.06 |
| BSPCA | 0.61 ± 0.18 | −0.65 ± 0.22 | 0.33 ± 0.23 | 0.26 | 0.05 |
| log(Mgas/M⊙) | |||||
| PCA | 0.742 | −0.613 | −0.272 | 0.263 | 0.049 |
| PPCA | 0.65 ± 0.18 | −0.59 ± 0.18 | −0.35 ± 0.22 | 0.29 | 0.06 |
| BSPCA | 0.70 ± 0.09 | −0.60 ± 0.16 | −0.30 ± 0.18 | 0.26 | 0.05 |
log( /K km s−1 pc2) |
|||||
| PCA | 0.835 | −0.356 | −0.420 | 0.229 | 0.027 |
| PPCA | 0.82 ± 0.04 | −0.42 ± 0.11 | −0.36 ± 0.08 | 0.27 | 0.04 |
| BSPCA | 0.83 ± 0.01 | −0.36 ± 0.08 | −0.42 ± 0.06 | 0.23 | 0.03 |
Notes. As in Table 2, the relative signs of the PCs are arbitrary, thus we used the same conventions for all of them; this has no bearing on the inversion of the equation of the PC with the least variance. Similar to Table 2, Col. (5) reports the standard deviation of PC3 around the hyperplane, and Col. (6) gives the proportion of its sample variance.
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