K-fiber force variation within cells is larger than between cells.

Variance contributions of the biophysical parameters, grouping by cell and location (5 radial partitions) within the MPP. The total variance (residuals) is shown in column 2, and the between-cell and between-location variance are given in columns 3, 4 respectively. Statistically significant differences between groups at 1% significance is indicated by *. The ratio of between cell to between location variance is given in column 5 and the size of effect (ratio of the population parameters’ standard deviation to the population parameters’ (absolute) mean) in column 6. Parameter are inferred on the model with asymmetry in and , ; the posterior median and values are averaged over the two sisters. Note: Some of the ANOVA assumptions are violated because of the low coverage of KT pairs per cell within each radius group. However, results on 3 radial boxes give similar results, see Table B in S1 Appendix, but again the results should be taken with caution. Data based n = 383 KT pairs from N = 14 cells; the reduced counts are due to the requirement that there are at least 3 sister pairs in each group.3