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04. Data #12

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briatte opened this issue Jul 3, 2017 · 0 comments
Open
20 tasks

04. Data #12

briatte opened this issue Jul 3, 2017 · 0 comments
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@briatte
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enhancement section
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v2.1.0 – Revise

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@briatte
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briatte commented Jul 3, 2017 •
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  • 4.0 Basic data operators
    • (Tidy) data frames, glimpse, rename and select, mutate, recode
    • Plain text, read_lines, stringr functions
    • JSON with jsonlite (or NDJSON)
    • XML/HTML trees with xml2
  • 4.1 Imports and Exports
    • Files
    • Databases
    • Files from Outer Space: Downloading a Google Spreadsheet
    • Files from Outer Space: Web Scraping with httr and rvest (and xm2)
  • 4.2. Reshapes and aggregates (N.B. things below are really case studies)
    • Split-Apply-Combine and tidiness
    • Reshaping: long and wide (always prefer long)
    • Aggregating (aggregate, group_by, summarise), slicing (apply, slice etc.)
    • Coercing to, and binding, data frames
  • 4.3. Practice
    • Currently: Estimates of Congressional ideology
    • >> MOVED from 4.2. Visualizing the U.S. housing market by city (Case Schiller Index)
    • >> MOVED from 4.2. Visualizing U.S. homicide trends by weapon type

TODO:

  • Include Twitter API example.

Notes:

  • Complex data object structures should be covered in Section 02 'Objects'
@briatte briatte self-assigned this Jul 3, 2017
@briatte briatte modified the milestones: v2.0, v2.1 Jul 3, 2017
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