Figure 4.

Comparison of accuracy and precision in BP_ND estimated by BFM using Standard weighting or Reference weighting with R₁ updated iteratively. Difference plots for (a) bias and (b) standard deviation are presented as in Figure 2(e,f), where greater values indicate lower bias and better precision with the Reference weighting method. Comparing (a) and (b) directly to Figure 2(e,f) (note the matching scales) indicates that the performance of Reference with R₁ iterated was intermediate between Standard and Reference with R₁ fixed. Results with MRTM were similar.