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Visualizing Immigration and Language Data


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Presentation on visualizing census data about foreign born citizens, and language use. Has some pretty maps.

Published in: Technology

Visualizing Immigration and Language Data

  1. 1. Immigration and Spoken Language Christopher Martin [email_address]
  2. 2. Data Source <ul><li>US Census Bureau </li></ul><ul><ul><li>Language Use, English Ability, and Linguistic Isolation data were collected in the 2000 census </li></ul></ul><ul><ul><li>Foreign Born Citizens are collected during census years and from the American community surveys. </li></ul></ul><ul><ul><li>TIGER/LINE files </li></ul></ul>
  3. 3. Data Format <ul><li>All data is originally in excel files </li></ul><ul><ul><li>Some is also available in PDF </li></ul></ul><ul><li>Required parsing and conversion </li></ul><ul><ul><li>Certain fields had to be extracted </li></ul></ul><ul><ul><li>Conversion to dbf for inclusion in ArcMap </li></ul></ul>
  4. 7. Language Data <ul><li>Wide Variety available </li></ul><ul><ul><li>Census Tract </li></ul></ul><ul><ul><li>County </li></ul></ul><ul><ul><li>State </li></ul></ul><ul><li>Individual languages </li></ul><ul><li>Language Families </li></ul>
  5. 8. Data Used <ul><li>Total Foreign Born Population </li></ul><ul><ul><li>Percentage of total pop. </li></ul></ul><ul><li>Total Number of Non-English Speakers at Home </li></ul><ul><ul><li>Percentage of total pop. </li></ul></ul><ul><li>Number of speakers per language family </li></ul><ul><ul><li>Percentage of total pop. </li></ul></ul><ul><li>Primary Language Family per Unit </li></ul>
  6. 9. Visualizing Language Data <ul><li>Predominant non english language </li></ul><ul><ul><li>Language family is essentially a category, assigned a unique color </li></ul></ul><ul><li>Number of non english speakers </li></ul><ul><ul><li>Dot Density worked well here </li></ul></ul><ul><li>Percentage of Total Population </li></ul><ul><ul><li>Graduated symbol worked best </li></ul></ul><ul><ul><ul><li>Calculated field was useful mostly for the legend </li></ul></ul></ul>
  7. 11. Graduated Symbols
  8. 12. Proportional Symbols
  9. 13. Predominant Language Family
  10. 14. Visualizing Immigration Data <ul><li>Not actually done yet </li></ul><ul><ul><li>Not available at the county level  </li></ul></ul><ul><li>Percent of total population </li></ul><ul><ul><li>Graduated Symbols a likely choice </li></ul></ul><ul><li>Raw Number per county </li></ul><ul><ul><li>Dot density could work </li></ul></ul><ul><ul><li>Dependent on the range of values </li></ul></ul>
  11. 15. Multivariate Visualization <ul><li>Mostly looked really ugly </li></ul><ul><li>Also, confusing </li></ul>
  12. 16. C’est Finis <ul><li>Questions? </li></ul>