Table 5. Summary of best propagator fits recommended for use with human and rat data.
| label | data set |
|
|
|
comments | |
| a | human | U | 3 | — | 7.083 | speculative, based on 2 data points |
| b | M | 3 | — | 14.91 | optimal fit, 6% diameter uncertainty | |
| c | 4 | — | 18.74 | optimal fit, 0% diameter uncertainty | ||
| d | rat | U | 2 | 1 | 0.7990 | optimal fit, best 
|
| e | 3 | — | 1.168 | optimal fit, easier to compute | ||
| f | M | 8 | 1 | 13.88 | good overall, best at small diameters | |
| g | 6 | 1 | 10.54 | large diameters only, best at peak | ||
| h | 4 | 1 | 9.500 | tolerable overall, easier to compute |
Shown is a summary of our best fit results for easy reference. “U” stands for unmyelinated, “M” for myelinated, and difference propagator fits are distinguished from dispersive ones by having an entry for 
. For example, label “c” would indicate choosing a dispersive propagator with parameters 
and 
for human myelinated axons.