Entering Data Within R
If you are entering a small number of observations, entering the data directly into R might be a good approach. There are a couple of different ways to enter data into R.
Entering Data Using R Commands
Many of the examples in Parts I and II show how to create new objects directly on the R console. If you are entering a small amount of data, this might be a good approach.
As we have seen before, to create a vector, use the
> salary <- c(18700000, 14626720, 14137500, 13980000, 12916666) > position <- c("QB", "QB", "DE", "QB", "QB") > team <- c("Colts", "Patriots", "Panthers", "Bengals", "Giants") > name.last <- c("Manning", "Brady", "Pepper", "Palmer", "Manning") > name.first <- c("Peyton", "Tom", "Julius", "Carson", "Eli")
It’s often convenient to put these
vectors together into a data frame. To create a data frame, use the
data.frame function to combine the vectors:
> top.5.salaries <- data.frame(name.last, name.first, team, position, salary) > top.5.salaries name.last name.first team position salary 1 Manning Peyton Colts QB 18700000 2 Brady Tom Patriots QB 14626720 3 Pepper Julius Panthers DE 14137500 4 Palmer Carson Bengals QB 13980000 5 Manning Eli Giants QB 12916666
Using the Edit GUI
Entering data using individual statements can be awkward for more than a handful of observations. (That’s why my example above included only five observations.) Luckily, R provides a nice GUI for editing tabular data: the data editor.
To edit an object with the data editor, ...
Get R in a Nutshell, 2nd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.