Fig. 3: PCA-MLR analysis results on the dataset of cell-averaged Raman spectra measured in living human colon cancer cell lines. | Communications Biology

Fig. 3: PCA-MLR analysis results on the dataset of cell-averaged Raman spectra measured in living human colon cancer cell lines.

From: Label-free morpho-molecular phenotyping of living cancer cells by combined Raman spectroscopy and phase tomography

Fig. 3

a MLR fitting equation and estimated model coefficients (βi) with their statistical significance (p-values) by via a two-tailed Student t-test. In grey, low-significance (p-value < 0.05) β coefficients. In red, high-significance (p-value < 0.01) β coefficients. b Partial leverage plots of significant PCs in the MLR model. c PCA loadings with indication of relevant Raman peaks. Red PCs are associated to highly significant β coefficients, the grey PC features lower significance. Sample size = 5 independent cells/phenotype.

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