how to find principal components from variance-covariance matrix? how to find principal components from variance cov matrix how to obtain principal components of a matrix of variance-covariance how to find principal components of a covariance matrix how to find principals from variance matrix how to find principal components in a matrix how to find principal components from variance-covariance matrix? which function can you find from a variance matrix? how to find principal components of the variance-covariance matrix which matrix is principal component how to find principal components from a variance coefficient matrix which matrix is used to find principal components of the variance matrix? how to find principal component of variance how to find the principal component of a variance matrix how to find principal components of the variance how to find principal components from variance-covariance matrix? how to find principal components in variance coefficient principal components of variance matrix how to find principal components from variance/covariance matrix how to find major components of variance-covariance matrix