# Perform a principal component and a principal factor analysis of the standardised features BASELINE,

Perform a principal component and a principal factor analysis

of the standardised features BASELINE, ACELRATE, ASTV, ALTV, MSTV and MLTV of

the FHRApgar dataset checking the following results:

a) The principal factor analysis affords a univariate

explanation of the data variance related to the FHR variability features ASTV

and ALTV, whereas the principal component analysis affords an explanation

requiring three components. Also check the scree plots.

b) The pc-score plots of the factor analysis solution afford

an interpretation of the Apgar index. For this purpose, use the varimax

rotation and plot the categorised data using three classes for the Apgar at 1

minute after birth (Apgar1: ≤5; >5 and ≤8; >8) and two

classes for the Apgar at 5 minutes after birth (Apgar5: ≤8; >8).