Comments (6)
Do you have a household travel survey? One of the anticipated seeds for the tool is a household travel survey. If not - what detailed understanding of your populations characteristics (demographics) do you have available?
from populationsim.
We have a household survey, and we already took some data for person seed such as car availability, age, hh size, driver license and etc. Yet, we could not find the way to calculate or estimate weight values for the person and household seed data. Thats why actually we are asking to help for calcculating PWGTP and WTGTP variables.
from populationsim.
Ahhh... I see now I didn't fully think through the issue you are up against. Right, here in the US, census is used to determine the weights on our travel surveys. Without some knowledge of the total population's size and demographics I'm not aware of a way to calculate weights.
If you do not have a data source that knows or approximates demographic information for the population of your region, I don't think you will have a method to develop weights. In that case, your only option might be to assume that your travel survey perfectly represents your population (no over or under sampling), and in that case your weights would be the same for each record. The weight for each record would be the total population for your region divided by the number of records in your survey. So if you had a million people in your region and thousand people in your survey, the person weight would be 1,000 for each person.
from populationsim.
Are the census PWGTP and WTGTP specifically designed or targeted for each State, such as Oregon? I noted that the PWGTP in the Southern Oregon PopulationSim do not line up with the ACS or Census's PWGTP, but follow exactly the Oregon Households WGTP, which are different from the Oregon State PWGTP.
from populationsim.
Sorry I left this question cold. I'm no census expert, but I do think the household weights are different than the person weights when it comes to the US census products. For your use I think they can be one in the same. Does that help - is this still a question you are trying to resolve (again, sorry about the delay).
from populationsim.
No further comments. We are trying to work around the PopulationSim "repop" again for splitting 2 MAZs to 7 MAZ and 7 TAZs.
from populationsim.
Related Issues (20)
- repop-pop-pop feature - pipeline file is not updated HOT 2
- Convert distribution system to conda-forge HOT 2
- add to documentation based on Zephyr review
- Different outputs when using MultiProcessing HOT 9
- Installation process issues HOT 3
- example_calm_repop not running HOT 8
- Repop mode not populating the second level geography (example_calm_repop)
- Allow specification of non-boolean expressions HOT 1
- Running Error: ValueError("Lengths must match to compare")
- Running Error: Lengths must match to compare on "integerize_final_seed_weights'" HOT 9
- Adjust a third party synthetic population HOT 8
- NumPy deprecation HOT 1
- ValueError: Buffer dtype mismatch, expected 'const int64_t' but got 'int' in setup_data_structures.py HOT 1
- ValueError exception running sub_balancing.geography=TRACT model: Length of values (2) does not match length of index (37) HOT 8
- Repop Error HOT 1
- Multiprocessing Start_time Error
- Randomness of PopulationSim outputs related to API calls HOT 2
- Installation outdated and not functional HOT 2
- example_calm NOT Running due to issues with activitysim
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from populationsim.