Added random_seed parameter in tractography

[36000]

This parameter sets the random_seed when random_seeds is True.

[36000]

@arokem Does the documentation always fail? Double check I updated everything correctly in the cli.json file before merging.

[arokem]

We probably want to use the random seed that is passed in other places where randomness is used.

The one that immediately comes to mind is the ProbabilisticDirectionGetter on L104 below

[36000]

For the ProbabilisticDirectionGetter, I believe that the random_seed set in local tracking is what it ends up using. I just set that to rng_seed.

[arokem]

I think that you need to also add this parameter as an option in bin/pyAFQ

[36000]

I think that you need to also add this parameter as an option in bin/pyAFQ

This is how segmentation parameters are handled in bin/pyAFQ:

I believe this means it is loaded from pyafq_cli.json ?

[arokem]

No - pyafq_cli.json is here for boutiques

But I think that I was wrong. All the arguments get automatically read in https://github.com/yeatmanlab/pyAFQ/blob/master/bin/pyAFQ#L42

So I believe this is good to go.