The goodness of fit
| N | Minimum d values for N combination of features (N = 1–17) | |
|---|---|---|
| Fit quality between physical and visual perceptual spaces | Fit quality between physical and tactile perceptual spaces | |
| 1 | d = 0.158 (F13) | d = 0.266 (F13) |
| 2 | d = 0.120 (F2, F13) | d = 0.215 (F2, F9) |
| 3 | d = 0.098 (F5, F13, F14) | d = 0.158 (F2, F4, F13) |
| 4 | d = 0.072 (F2, F11, F13, F14) | d = 0.135 (F2, F4, F11, F16) |
| 5 | d = 0.061 (F2, F5, F11, F13, F14) | d = 0.126 (F2, F4, F9, F15, F17) |
| 6 | d = 0.062 (F2, F3, F6, F12, F14, F15) | d = 0.118 (F2, F4, F5, F10, F11, F17) |
| 7 | d = 0.053 (F2, F5, F6, F11, F13, F14, F15) | d = 0.101 (F2, F4, F5, F11, F13, F15, F17) |
| 8 | d = 0.052 (F2, F3, F4, F8, F11, F13, F14, F15) | d = 0.110 (F2, F4, F5, F6, F9, F10, F11, F15) |
| 9 | d = 0.050 (F2, F4, F5, F6, F7, F11, F13, F14, F15) | d = 0.116 (F2, F4, F7, F10, F11, F12, F13, F15, F16) |
| 10 | d = 0.048 (F1, F2, F4, F5, F7, F8, F11, F13, F14, F15) | d = 0.120 (F2, F4, F5, F7, F9, F10, F11, F14, F15, F17) |
| 11 | d = 0.050 (F2, F4, F5, F6, F7, F10, F11, F12, F13, F14, F15) | d = 0.132 (F2, F3, F4, F7, F9, F10, F11, F12, F14, F15, F16) |
| 12 | d = 0.060 (F1, F2, F4, F5, F7, F8, F10, F11, F12, F13, F14, F15) | d = 0.145 (F2, F3, F4, F6, F7, F9, F10, F11, F12, F14, F15, F17) |
| 13 | d = 0.078; all features were selected except F6, F9, F12, F17 | d = 0.150; all features were selected except F1, F6, F8, F13 |
| 14 | d = 0.110; all features were selected except F6, F16, F17 | d = 0.171; all features were selected except F5, F8, F13 |
| 15 | d = 0.167; all features were selected except F10, F14 | d = 0.271; all features were selected except F10, F14 |
| 16 | d = 0.168; all features were selected except F14 | d = 0.272; all features were selected except F14 |
| 17 | d = 0.168; all features were selected | d = 0.272; all features were selected |
The d values in the columns represent the minimum d values between the physical and the visual/tactile perceptual space for a different combination of features. The best fit quality between physical and visual perceptual spaces occurred when the ten features F1, F2, F4, F5, F7, F8, F11, F13, F14, F15 were selected. On the other hand, the combination of the seven features F2, F4, F5, F11, F13, F15, F17 lead to the best fit quality between physical and tactile perceptual spaces. These two modalities share the features F2, F4, F5, F11, F13, F15. (Extended Data Table 2-1).