Active dimensions is the number of dimensions remaining after the
reduction of the dimensionality of the analysis.
Active modalities is the number of modalities that are not set as
passive.
Share of passive mass is the percentage of the total mass that is
represented by the passive modalities.
The values represented in the scree plot are the adjusted inertias,
see variance
The active variables are represented with their number of active
modalities and their share of the total variance/inertia.