{
  "name": "SARS-CoV-2-Wastewater",
  "short_description": "Demo use of webR",
  "description": "Demo project of how can combine webR's graphing (and statistical) capabilities with Codea lua. Uses base R's standard plots; much more professional plots can be made using the R package 'ggplot2' which can be installed in webR (see webR project and  https://ggplot2.tidyverse.org and https://r-graph-gallery.com/). \n\nDemo project also demonstrates the use of Codea's objective-C bridge with multiple objective-C controls (e.g. labels, buttons, date and general pickers, and auto-layout). App is ready to use when both white square backgrounds have been rendered; there is currently a variable amount of lag in being able to use the buttons when the app starts. @jfperusse indicated he is aware and that the lag should be improved with a future Codea release.\n\nThe app queries CDC's National Wastewater Surveillance System database (info: https://www.cdc.gov/news's/how-was-works.html or https://pubmed.ncbi.nlm.nih.gov/38095438/ for a good treatise on the subject) for the concentration of SARS-CoV-2 viral concentrations in selected wastewater plants for selected cities. The app allows comparison of two cities side by side over a variable timeframe from 12/1/2021 (when reporting standard more consistent) to the present. For reasons explained in the informational links, best to compare trends in cities over time rather than absolute concentrations of SARS-CoV-2 in different cities' wastewater. \n\nThe project includes two dependency libraries: webR & xml2lua-Parser \n\nSpecial thanks to @steppers for his work creating the webR-Codea lua bridge, @jfperusse for objective-C bridge and providing tips on how to use it in this project, and my online programming colleague, Kartik (@akkartik.itch.io) who debug this project. \n\nSuggestion for improvement welcomed ",
  "authors": [
    "SugarRay"
  ],
  "version": "1.0.0",
  "update_notes": "- Initial Release",
  "category": "App",
  "platform": "iPad & iPhone",
  "forum_link": "https://codea.io/talk/",
  "icon": "SARS-CoV-2-Wastewater.codea/Icon.png",
  "hidden": false,
  "size": 408760,
  "timestamp": 1704665184
}