Principal component analysis

Find and plot eigenvectors to 2D data points

3.5,0.2,3,0.2,3.2,0.2,3.1,0.2,3.6,0.2,3.9,0.4,3.4,0.3,3.4,0.2,2.9,0.2,3.1,0.1,3.7,0.2,3.4,0.2,3,0.1,3,0.1,4,0.2,4.4,0.4,3.9,0.4,3.5,0.3,3.8,0.3,3.8,0.3,3.4,0.2,3.7,0.4,3.6,0.2,3.3,0.5,3.4,0.2,3,0.2,3.4,0.4,3.5,0.2,3.4,0.2,3.2,0.2,3.1,0.2,3.4,0.4,4.1,0.1,4.2,0.2,3.1,0.1,3.2,0.2,3.5,0.2,3.1,0.1,3,0.2,3.4,0.2,3.5,0.3,2.3,0.3,3.2,0.2,3.5,0.6,3.8,0.4,3,0.3,3.8,0.2,3.2,0.2,3.7,0.2,3.3,0.2,3.2,1.4,3.2,1.5,3.1,1.5,2.3,1.3,2.8,1.5,2.8,1.3,3.3,1.6,2.4,1,2.9,1.3,2.7,1.4,2,1,3,1.5,2.2,1,2.9,1.4,2.9,1.3,3.1,1.4,3,1.5,2.7,1,2.2,1.5,2.5,1.1,3.2,1.8,2.8,1.3,2.5,1.5,2.8,1.2,2.9,1.3,3,1.4,2.8,1.4,3,1.7,2.9,1.5,2.6,1,2.4,1.1,2.4,1,2.7,1.2,2.7,1.6,3,1.5,3.4,1.6,3.1,1.5,2.3,1.3,3,1.3,2.5,1.3,2.6,1.2,3,1.4,2.6,1.2,2.3,1,2.7,1.3,3,1.2,2.9,1.3,2.9,1.3,2.5,1.1,2.8,1.3,3.3,2.5,2.7,1.9,3,2.1,2.9,1.8,3,2.2,3,2.1,2.5,1.7,2.9,1.8,2.5,1.8,3.6,2.5,3.2,2,2.7,1.9,3,2.1,2.5,2,2.8,2.4,3.2,2.3,3,1.8,3.8,2.2,2.6,2.3,2.2,1.5,3.2,2.3,2.8,2,2.8,2,2.7,1.8,3.3,2.1,3.2,1.8,2.8,1.8,3,1.8,2.8,2.1,3,1.6,2.8,1.9,3.8,2,2.8,2.2,2.8,1.5,2.6,1.4,3,2.3,3.4,2.4,3.1,1.8,3,1.8,3.1,2.1,3.1,2.4,3.1,2.3,2.7,1.9,3.2,2.3,3.3,2.5,3,2.3,2.5,1.9,3,2,3.4,2.3,3,1.8

The CSV data should contain 2D data points in the format of x1,y1,x2,y2...x_n,y_n