Table 2.

Correlation coefficients in combination with concordance and variance analysis including MAE, MAPE and maximal percentage error.

Figure	Pearson correlation coefficient (r)	Intraclass correlation coefficient (ICC)	Concordance correlation coefficient (ρc)	Mean absolute error (MAE) in N	Mean absolute percentage error (MAPE) in %	Maximal percentage error
Figure 1	0.92 (0.903–0.939)	0.914 (0.892–0.932)	0.9 (0.88-9.92)	139.99	7.12	27.25%
Figure 2	0.7 (0.632–0.754)	0.696 (0.630–0.753)	0.68 (0.61–0.74)	304.51	17.36	57.24%
Figure 3	0.55 (0.464–0.630)	0.55 (0.461–0.630)	0.53	413,58	23,59	67.42%