Table 2. Dimensionalities d_PCA and d_MLE of two datasets (AGP and HMP) in three taxonomy levels (O, Order; F, Family; G, Genus).

Dataset	Tax O		Tax F		Tax G
	d PCA	d MLE	d PCA	d MLE	d PCA	d MLE
AGP	16	6	34	8	47	8
HMP	18	5	35	6	40	6

Notes.

d_PCA

number of the first principal components explaining 99% variance

d_MLE

estimated intrinsic dimension.