ycoef

[,1]

[,2]

[,3]

[,4]

SO₂

0.05071641

0.001070345

0.20030323

−0.006962014

CO

0.09547422

−0.188519541

−0.118225765

−0.064796227

NO₂

0.07978821

0.20400649

−0.029710909

0.09247478

O₃

0.01023794

−0.012659033

−0.005763517

−0.202667627