Figure 2 | Scientific Reports

Figure 2

From: Distinguishing between genotoxic and non-genotoxic hepatocarcinogens by gene expression profiling and bioinformatic pathway analysis

Figure 2

PCA (Principal Component Analysis).

The results are depicted 3-dimensionally with PC1 (35%), PC2 (12%) and PC3 (7%) as the X, Y and Z axes, respectively. Each color represents a different compound in single and multiple treatments and one chip data are shown as a large circle, with 41 training data points on the graph. The data before the statistical analysis show no gathering between the GTX and NGTX groups; therefore, a selection process to detect the significant gene is needed. Only DL-ethionine (multiple), light blue, showed a different PC2 value from the other data; this was found when interpreting the results after the statistical analysis.

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