pearson
P1,Y1,P2,Y2,P3,Y3
1,-0.3645,0.5176,-0.1569,0.1047,-0.0524
-0.3645,1,-0.3129,0.7167,-0.0838,0.3129
0.5176,-0.3129,1,-0.4363,0.2922,-0.1256
-0.1569,0.7167,-0.4363,1,-0.0733,0.2611
0.1047,-0.0838,0.2922,-0.0733,1,-0.2091
-0.0524,0.3129,-0.1256,0.2611,-0.2091,1