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  3. Reshaping Data with tidyr
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연습 문제

Nesting tibbles

You're pre-processing the US army body measurement dataset ANSUR II to train multiple models in a single pipeline. You'll experiment with the nest() function to create a list column with nested tibbles containing sub-sets of the data.

the dplyr package has been pre-loaded for you.

지침 1/4

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  • Group the data by army branch and then nest it.