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. 2016 Jan 13;23:7828–7839. doi: 10.1007/s11356-015-5943-z

Fig. 4.

Fig. 4

Correlation circle and factorial map from the first two axes for the main variables (VIP > 1) from partial least square analysis (PLSDA). a Correlation circle; b Factorial map. qPCR positive and negative samples are reported in red and green, respectively. Each sample is connected to the barycenter of each group of point