TABLE 5.
Power analysis protocol for a PERMANOVA test using the Bray–Curtis beta metric.
| Power analysis protocol: multivariate case—beta diversity | ||
| Test – PERMANOVA | ||
| Options: | 9,999 permutation | |
| 100 iterations | ||
| Analysis: | Compute achievable power | |
| Input: | Beta metric | = Bray–Curtis |
| α err prob | = 0.05 | |
| Number of groups | = 2 | |
| Number of taxa | = 363 | |
| Sample size group 1 | = 6 | |
| Sample size group 2 | = 6 | |
| Output: | ||
| Observed effect size (average) ϖ2 | = 0.120682 | |
| Min\Max effect size | = 0.025922\0.3500687 | |
| Observed effect size (average) f | = 0.2696886 | |
| Min\Max effect size | = 0.1319342\ 0.746349 | |
| Numerator df | = 1 | |
| Denominator df | = 10 | |
| Power (1−β err prob) | = 0.97 | |
PERMANOVA, permutational multivariate ANOVA.