row+colnames {BiocGenerics} | R Documentation |
Row and column names
Description
Get or set the row or column names of a matrix-like object.
NOTE: This man page is for the rownames
, `rownames<-`
,
colnames
, and `colnames<-`
S4 generic functions
defined in the BiocGenerics package.
See ?base::rownames
for the default methods
(defined in the base package).
Bioconductor packages can define specific methods for objects
(typically matrix-like) not supported by the default methods.
Usage
rownames(x, do.NULL=TRUE, prefix="row")
rownames(x) <- value
colnames(x, do.NULL=TRUE, prefix="col")
colnames(x) <- value
Arguments
x |
A matrix-like object. |
do.NULL , prefix |
See |
value |
Either |
Value
The getters will return NULL
or a character vector of length
nrow(x)
for rownames
and length ncol(x)
for colnames(x)
.
See ?base::rownames
for more information about the
default methods, including how the setters are expected to behave.
Specific methods defined in Bioconductor packages should behave as consistently as possible with the default methods.
See Also
-
base::rownames
for the defaultrownames
,`rownames<-`
,colnames
, and`colnames<-`
methods. -
showMethods
for displaying a summary of the methods defined for a given generic function. -
selectMethod
for getting the definition of a specific method. -
rownames,DataFrame-method in the S4Vectors package for an example of a specific
rownames
method (defined for DataFrame objects). -
BiocGenerics for a summary of all the generics defined in the BiocGenerics package.
Examples
## rownames() getter:
rownames # note the dispatch on the 'x' arg only
showMethods("rownames")
selectMethod("rownames", "ANY") # the default method
## rownames() setter:
`rownames<-`
showMethods("rownames<-")
selectMethod("rownames<-", "ANY") # the default method
## colnames() getter:
colnames # note the dispatch on the 'x' arg only
showMethods("colnames")
selectMethod("colnames", "ANY") # the default method
## colnames() setter:
`colnames<-`
showMethods("colnames<-")
selectMethod("colnames<-", "ANY") # the default method