how do you efa bond can you do pca and efa on bond returns why does stata not accept bonds why should i disregard the uniqueness of the bond? when a bond returns heywood case the uniqueness is 0 can you perform efa on bond returns can you use pca as factor or efa for bond returns in stata should i disregard bond variables how to use efa in stata can i use efa as a factor in stata does stata accept bond returns? why i need to perform pca on bond returns using stata how can i interpret pca and efa on bonds can i use pca in stata how to do pca and efa on bonds can i ignore bond variables can pca and efa be performed in stata analysis what is bond variable in stata how to use pca and efa on bonds can stata perform pca and efa analysis