98 vignette on parsnip and recipes

[ChloeYou]

Addressed feedback from last meeting.

[ChloeYou]

Add to-dos.

[dajmcdon]

@ChloeYou The framework you have here is really great. I made a few updates, most pretty minor. Though I also had to make a bunch of changes to some code.

1. Can you read over it all?
2. Take a look at the changes to layer_population_scaling(). I added an argument to deal with "cases per 100K population". Basically case_rate isn't per capita, but per 100K inhabitants. Can you proof the documentation changes I made?
3. Can you make a similar modification to step_population_scaling().
4. Check over the documentation for state_census. I decided to add it here rather than grabbing from covidcast.

Thank you!

[ChloeYou]

@ChloeYou The framework you have here is really great. I made a few updates, most pretty minor. Though I also had to make a bunch of changes to some code.

1. Can you read over it all?
2. Take a look at the changes to layer_population_scaling(). I added an argument to deal with "cases per 100K population". Basically case_rate isn't per capita, but per 100K inhabitants. Can you proof the documentation changes I made?
3. Can you make a similar modification to step_population_scaling().
4. Check over the documentation for state_census. I decided to add it here rather than grabbing from covidcast.

Thank you!

Thank you for reviewing and making edits! I'll aim to get these done by EoW. Thanks!

[ChloeYou]

@ChloeYou The framework you have here is really great. I made a few updates, most pretty minor. Though I also had to make a bunch of changes to some code.

1. Can you read over it all?
2. Take a look at the changes to layer_population_scaling(). I added an argument to deal with "cases per 100K population". Basically case_rate isn't per capita, but per 100K inhabitants. Can you proof the documentation changes I made?
3. Can you make a similar modification to step_population_scaling().
4. Check over the documentation for state_census. I decided to add it here rather than grabbing from covidcast.

Thank you!

On the second point, proof the documentation change as in write a test case for the functionality? @dajmcdon

[ChloeYou]

Created new PR in #137 to address remaining comments. @dajmcdon

The changes in the code, addition of the plot of density of mask wearing, and state_census documentation all look good to me! Thanks again for the thorough review!