what is the principal component of an analysis? what is principal components analysis backward when a pc1 is unrotated what does it mean what does principal component analysis tell me what is principal component analysis what is the principal component analysis of a data sample? what is principal component analysis what is principal component of analysis which is the principal component of principal components of an analysis? how to do a principal component analysis backwards what is the principal component analysis of the principal variable? how does the principal component analysis work how to do principal component analysis backwards which type of analysis is best to do backwards what is principal component analysis backwards how to do principal component analysis backwards how to do data analysis backwards which variable is used in a principal component analysis backwards which of the following is a principal component of principal analysis backwards? how to do a principal component analysis backwards