1. Lernen
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  2. Kurse
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  3. Programming with dplyr
  • 1

    Hold Your Selected Leaders Accountable

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    In this chapter, you'll revisit dplyr pipelines and enhance your column selection skills with helper functions and regular expressions.

  • 2

    Keep Them Dogies Movin’

    Here, you'll learn how to move columns around in your data and perform the same transformation across multiple data columns. You'll also choose rows that match any or all column criteria.

  • 3

    Set Theory Claus and The North Pole

    For this section, you'll revisit dplyr joins. You'll then take this further by using set theory clauses to examine overlaps and differences between datasets.

  • 4

    Speaking a New rlang-uage

    In this final part of the course, you'll use rlang operators to turn arguments into variables and create functions that incorporate dplyr and ggplot2 code.

Initializing

Ubung

Rearranging with select() and last_col()

You can also use last_col() with : to organize the last few columns in your data. Work with the select() function to match the ordering of the imf_data shown. Note that this ordering is different than what you saw in the previous exercise.

Anweisungen

100 XP
  • Choose columns iso through year.
  • Then, match for columns starting with "gov" using regular expressions.
  • Finally, have your remaining columns ordered as gdp_in_billions_of_usd to the last column.