Scraping, wrangling & viz, oh my! Fun with Columbia Basin DART (fish passage data)

As a little side project, I decided to scrape data from the Columbia Basic Research DART (Data Access in Real Time) to explore fish passage and seasonal trends over time.

• Check out the exploratory document: https://horst.shinyapps.io/dart_fish/
• Visit the project repo: https://github.com/allisonhorst/dart_salmon_passage

This project involved:

• A little crawl over web pages with purrr (and loving the side effects, like possibly()!)
• Web scraping with rvest to access fish count tables from > 1500 unique URLs
• Creating a function to access an html table, read it in, and combine with other scraped tables
• Data wrangling (dplyr)
• Data visualization (ggplot2)
• Interactive visualizations (shiny widgets + reactive outputs)
• Next steps: time series analysis & forecasting!