test_data/covmat0.csv


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1.25,0.25,0.25,0.25,0,0,0,0
0.25,1.25,0.25,0.25,0,0,0,0
0.25,0.25,1.25,0.25,0,0,0,0
0.25,0.25,0.25,1.25,0,0,0,0
0,0,0,0,0.875,-0.125,-0.125,-0.125
0,0,0,0,-0.125,0.875,-0.125,-0.125
0,0,0,0,-0.125,-0.125,0.875,-0.125
0,0,0,0,-0.125,-0.125,-0.125,0.875