Although statistical tests may identify those features showing correlation with the CpG island methylation, the identified features might be inter-correlated themselves.
It has been found that polarographic half-wave potentials correlate themselves linearly with EItA values can be determined by means of charge transfer spectroscopy.
The Hsp70 and Naka mRNA were correlated amongst themselves and showed a direct positive correlation with environmental salinity, and a negative correlation with fish condition factor.
Skin flavonols were highly correlated among themselves and showed medium to high correlations with other polyphenolic compounds present in the skin, such as anthocyanins, flavanols and dihydrochalcones (Additional File 1; Table S1).
PEmb-QoL dimensions were moderately well correlated between themselves (0.53 ≤ r ≤0.83), with the highest correlation being between intensity of complaints and frequency of complaints (r = 0.83) and between intensity of complaints and emotional complaints (r = 0.75).
The values that were not statistically significantly correlated between themselves have been rejected.
Morphology, structure and electrochemical properties are strictly correlated among themselves and with the composition of the coating.
Both scales were tested for hexafactorial oblique structure, i.e., with six factors that are correlated among themselves.
Electrophysiologic alterations were correlated among themselves, with age, with presence of segmental zoster paresis, and with absence of antiviral therapy.
Traditionally, the first few PCs are used in data analysis, since they retain most of the variants among the data features (in the original data set), and eliminate (by the projection) those features that are highly correlated among themselves; whereas the last few PCs are often assumed to retain only the residual noise in the data [23, 57].
