Deletion of PCA applied to yield curves

Comment: as nonsense vio of .  Actually, this vapid stub is a fitting :-/ parody of PCA, a widely used but suspect method in statistics (the geometry is fine; the problem is with the ''interpretation''; as typically used, PCA is just a method for lying with statistics--- in a way, it's rather fascinating that such a thing is possible, but plainly I digress
Stance: delete
Cited policy: Wikipedia:No original research (WP:NOR)