Figure 2
From: Space evaluation in football games via field weighting based on tracking data
Relationship between the axes of \( \tau _{\text{of}}\) and \(\tau _{\text{df}} \) and those of \( z_{1}\) and \(z_{2}\). The safe space (\( z_{1} > 0 \)) and the risky space (\( z_{1} < 0 \)) for the offense team are shown by shading.
