Closed mzwu closed 2 years ago
Awesome, thank you @mzwu ! Would it be possible to make a BVAP performance plot like you did in the initial pull request here: https://github.com/alarm-redist/fifty-states/pull/74 Checking to make sure the crossover minority story is consistent with before.
Sure thing, here it is:
@tylersimko
Awesome, thank you @mzwu ! This looks good to merge to me.
Redistricting requirements
In Louisiana, according to Louisiana Joint Rule No. 21 districts must:
Interpretation of requirements
We enforce a maximum population deviation of 0.5%. We add a hinge Gibbs constraint targeting the same number of majority-minority districts as the enacted plan. We also apply a hinge Gibbs constraint to discourage packing of minority voters.
Data Sources
Data for Louisiana comes from the ALARM Project's 2020 Redistricting Data Files.
Pre-processing Notes
To preserve the cores of prior districts, we merge all precincts which are more than two precincts away from a district border, under the 2010 plan.
Simulation Notes
We sample 16,000 districting plans for Louisiana across two independent runs of the SMC algorithm, and then thin the sample to down to 5,000 plans. To balance county and municipality splits, we create pseudocounties for use in the county constraint, which leads to fewer municipality splits than using a county constraint.
Validation
Checklist
TODO
lines from the template code have been removedenforce_style()
to format my coderedist_map
andredist_plans
objects, and summary statistics) have been editedAdditional Notes
Performance plot for minority VAP.![image](https://user-images.githubusercontent.com/55368740/175096344-07899bf5-f894-4009-aca6-be0c1b28af74.png)
@tylersimko