. Author manuscript; available in PMC: 2018 Sep 26.

Published in final edited form as: Mol Biosyst. 2017 Sep 26;13(10):2069–2082. doi: 10.1039/c7mb00390k

Table 3.

Regression models for average instantaneous directed cell velocity^*

v_d = C + C_conc[L]^n_conc + C_grad∇L^n_grad + C_cross[L]^n_c,c∇L^n_g,c
Parameter	Model 1	Model 2	Model 3C	Model 3G
RMSE	0.06168	0.06166	0.06167	0.06166
C	N/I	N/I	N/I	N/I
*C_conc*	2.22E−07	3.15E−04	5.29E−03	N/I
*n_conc*	1.85E−04	3.26E−14	0.054	N/I
*C_grad*	4.47E−03	4.43E−03	N/I	4.76E−03
*n_grad*	0.104	0.106	N/I	0.099
*C_cross*	2.91E−04	N/I	N/I	N/I
*n_c,c*	5.55E−05	N/I	N/I	N/I
*n_g,c*	4.20E−06	N/I	N/I	N/I

N/I: not included. Units are: velocity, µm/min; ligand concentration, ng/ml; and ligand gradient, ng/ml/mm.