| row.names {base} | R Documentation |
Get and Set Row Names for Data Frames
Description
All data frames have a row names attribute, a character vector of length the number of rows with no duplicates nor missing values.
For convenience, these are generic functions for which users can write
other methods, and there are default methods for arrays. The
description here is for the data.frame method.
Usage
row.names(x)
row.names(x) <- value
Arguments
x |
object of class |
value |
a vector with the same length as the number of rows of
|
Value
row.names returns a character vector.
row.names<- returns a data frame with the row names changed.
Note
row.names is similar to rownames for arrays, and
it has a method that calls rownames for an array argument.
References
Chambers, J. M. (1992) Data for models. Chapter 3 of Statistical Models in S eds J. M. Chambers and T. J. Hastie, Wadsworth \& Brooks/Cole.
See Also
data.frame, rownames.