“…Studies on applications of PCA to process industries can be found in Akbaryan and Bishnoi (2001), Amand et al (2001), Kano et al (2001Kano et al ( , 2002, Kruger et al (2001), McAvoy (2002), Ü ndey and Cinar (2002), Wong and Wang (2003), Lee et al (2004), Miletic et al (2004).…”