Variables

Principal components

F1

F2

F3

Biogas (mL)

0.570

0.587

−0.575

CH₄ (%)

0.755

−0.097

0.649

CO₂ (%)

−0.325

0.803

0.499

Eigen values

1.719

1.259

0.023

Variance (%)

57.292

41.952

0.756

Cumulative (%)

57.292

99.244

100.000