Pharmaceutical Applications of Chemometric Techniques

Table 1

Special cases of Principal Component Analysis.

Principal Component Regression; (PCR)	Soft Independent Modelling of Class Analogy; (SIMCA)	Multi-way Principal Component Analysis; (MPCA)
It is a regression version of PCA because it uses the scores of the PCA model to correlate.	It is a clustering method that constructs separate PCA models for a prior determined class of data that operates on the residual matirx	It operates with higher dimensional data-array by unfolding it prior to bi-linear PCA