Checklist

Section 2.9 Checklist

When working with tidyverse, have you:

[ ] Installed the package using install.packages() (only needed once)?

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[ ] Loaded the package for the current R session using library()?

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[ ] Started your pipeline with the correct data source?

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[ ] Used the pipe operator (|>) to make your code readable from left to right?

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[ ] Ensured each step in your pipeline performs one clear transformation?

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[ ] Used select() to control which columns are included?

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[ ] Used filter() with proper logical operators (==, &, |, %in%) to control which rows are kept?

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[ ] Verified that == (comparison) is used instead of = (assignment) inside filter()?

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[ ] Considered how missing values (NA) affect filtering and calculations?

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[ ] Used mutate() to create or modify variables without unintentionally overwriting existing data?

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[ ] Checked that the order of functions in your pipeline makes sense?

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[ ] Inspected your data after major transformations (e.g., filtering, mutating, grouping)?

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[ ] Applied group_by() before summarize() when computing grouped summaries?

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[ ] Re-run your entire pipeline from top to bottom to ensure it is fully reproducible?

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