Fig. 4

a Scatter plot of data collected from Fox1 in the three-dimensional space given by the first three principal component projections after z scoring (i.e., subtracting the mean and dividing by the standard deviation of each feature). Note that z-scoring and PCA were done strictly to facilitate viewing the four-dimensional feature data in three dimensions; they were not employed as processing steps prior to classification. b–d Two-dimensional projections onto all possible pairs of the first three principle components. Blue = leaping; red = foraging; green = trotting