Generic coefficent guesses

[leek2]

Many models require a set of generic, c1, c2, etc. Polynomial fit is the most obvious example of this. We should allow the user to provide guesses for this, but as an array. The question is how to pass in an array on the command line. There should also be a way to pass "None" so we can skip certain coefficents, if the user has a guess for c2 instead of c1, for example.

Say it takes c1-c5:

--coefficient-guesses="None,2.0,3.0"

so c1 = None, c2 = 2.0, c3 = 3.0, c4 = None, and c5 =None

[leek2]

Also, while we're at it, could we simplify other command line arguments? Maybe x0 and y0 could replace rho0/v0 and theta0/gamma0 respectively.

[nprisbrey]

Just to verify, this change to the constants will have to be programmed into the SandiaPC, Johnson_Holmquist, Poly Series, EHighP, ThetaBP, and GammaV fitters, correct? Am I missing anything @leek2?

[leek2]

That looks like the full list to me. I could be wrong of course. :)

[leek2]

BTW, This isn't done yet