Journal of Analytical Methods in Chemistry / 2014 / Article / Tab 6

Research Article

Global Clustering Quality Coefficient Assessing the Efficiency of PCA Class Assignment

Table 6

Cumulated explained variance.

Principal componentPC1 (%)PC2 (%)PC3 (%)PC4 (%)PC5 (%)PC6 (%)PC7 (%)PC8 (%)PC9 (%)PC10 (%)

Unprocessed
spectra
37.953.163.371.878.482.987.089.892.193.8
preprocessed spectra 44.665.973.679.384.689.091.693.494.895.9
preprocessed spectra48.580.085.488.792.093.895.7
preprocessed spectra70.592.895.8