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. 2017 Sep 13;7:11463. doi: 10.1038/s41598-017-11844-3

Figure 3.

Figure 3

(a) PCA score plot of the NIR spectral data of the samples showing classification into two distinct groups. “Class 1” consists of sham and samples from weeks 1 and 2 post-injury, class 2 consists of samples from weeks 4 and 6 post-injury. (b) SVM decision boundary showing the optimal demarcation of both classes.[w1 = week 1; w2 = week 2; w4 = week 4; w6 = week 6].