Table 4.

Results of correlation coefficients between P _Φ and P _Dm from all the error types

Coefficients	Gantry	MU	Jaw	Collimator	MLC
$P_{\mathrm{\Phi },I(\overrightarrow{r})}$ and $P_{Dm,I(\overrightarrow{r})}$ (3% intensity difference)
Pearson (r)	0.4121	0.6514	0.5248	0.8554	0.4336
Spearman (ρ)	0.9701	0.8997	0.9015	0.9810	0.7853
Spearman (p)	0.0232	0.0399	0.0425	0.0315	0.0652
P Φ,γ and  P Dm,γ (3%, 3mm Gamma analysis)
Pearson (r)	0.5771	0.5397	0.6541	0.7981	0.5026
Spearman (ρ)	0.8653	0.9012	0.9520	0.9805	0.7916
Spearman (p)	0.04196	0.0356	0.0492	0.0157	0.0694