why do you use jaccard indexes instead of pca what is the difference between a covariance matrix and a jaccard index what makes pca what is jaccard index what is the difference between a jaccard index and a pca do covariance indexes make sense what is the difference between a covariance matrix and pca why do we use jaccard index as the principal component why use a jaccard index instead of a covariance matrix is a pca a covariance matrix what is the purpose of jaccard indexes why use jaccard indexes instead of covariance what is a jaccard index matrix used for what type of matrix do you use for principal component analysis? which index is used when performing pca what is covariance pca what type of index is the pca why do i need to use jaccard in pca which is a principal component analysis? what is pca used for