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R in 3 Months (Spring 2026)

Tidy Data Rule #2: Every Row is an Observation

Transcript

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Your Turn

Run the following code to view the built-in gss_cat data frame.

library(tidyverse)

gss_cat |>
  view()

Then, write code to count the number of unique responses in the partyid variable.

You’ll need to use the separate_longer_delim() and count() functions to do this.

Learn More

This lesson from the R for Social Scientists course materials covers separate_longer_delim().

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Course Content

144 Lessons