Get access to all lessons in this course.
-
Setup packages
- devtools and usethis
- Package names and authors
- Choose a license
- Setup git + GitHub
-
Write code
- Writing functions
- Adding functions to our package
- Using other packages
- Packages so good they get their own functions
- Organizing .R files
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Document
- roxygen2: In-Line Documentation for R
- Argument descriptions and examples
- Helper functions
- Joining documentation
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Test
- Unit tests for R
- Organizing tests
- R CMD Check
- Types of Test Files
- Test Coverage
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Teach
- Examples
- README
- Spellcheck
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Add data and files
- Store data and files
- Include data for tests and create RMarkdown templates
- Create other templates
- Launch and store Shiny apps
- Citations, ignoring files, and including add-ins
Package Development with R
Packages so good they get their own functions
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This lesson is called Packages so good they get their own functions, part of the Package Development with R course. This lesson is called Packages so good they get their own functions, part of the Package Development with R course.
Transcript
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Your Turn
We need roxygen2 for this exercise. We’ll learn more about it in the next module. For now, just run use_roxygen_md()
Run use_tibble() and use_data_table()
In R/get_data.R, edit the function to be able to return a data table: Add the argument data_table = FALSE. If data_table is TRUE, convert the data frame with data.table::as.data.table()
Load the package and run this code to make sure it works
use_roxygen_md()
use_tibble()
use_data_table()
get_resident_data <- function(data_table = FALSE) {
residents_per_sector <- db_con("residents_per_sector")
if (data_table)
return(data.table::as.data.table(residents_per_sector))
tibble::as_tibble(residents_per_sector)
}Your Turn 4 Stretch Goal
Run use_pipe() to add the magrittr pipe to your package. What changed?
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