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Appendix of Data Frames Used in Course Textbook
All data frames listed below are automatically preloaded when you run library(coursekata). Link to full repository of R documentation: https://www.rdocumentation.org/ Data Frame Name and Link to R Documentation Ames BikeCommute FatMice18 Fingers ...
data
Data are numbers that represent something about the world; the result of sampling and measurement.
tidy data
Tidy data is a way of organizing data into rectangular tables, with rows and columns, in which each column is a variable, each row is an observation, and each type of observational unit it kept in a different table.
print()
The print() function will print out, or make visible in the output, any contents in the argument. Example 1: The print() function can be helpful for annotating code output. Put content in "quotations" to avoid error messages. print("Analysis of ...
sort()
The sort() function will sort a vector (or a single column in a data frame) by a specific variable, in ascending order. You can use the decreasing = TRUE argument with the sort() function to sort the data frame in descending order (be careful not to ...