which {BiocGenerics} | R Documentation |
Which values in an object are considered TRUE?
Description
Give the indices of the values in a vector-, array-, or list-like object
that are considered TRUE
, allowing for array indices in the case
of an array-like object.
NOTE: This man page is for the which
S4 generic function
defined in the BiocGenerics package.
See ?base::which
for the default method (defined
in the base package).
Bioconductor packages can define specific methods for objects (typically
vector-, array-, or list-like) not supported by the default methods.
Usage
which(x, arr.ind=FALSE, useNames=TRUE)
Arguments
x |
An object, typically with a vector-, array-, or list-like semantic. |
arr.ind , useNames |
See |
Value
See ?base::which
for the value returned
by the default method.
Specific methods defined in Bioconductor packages should behave as consistently as possible with the default method.
See Also
-
base::which
for the defaultwhich
method. -
showMethods
for displaying a summary of the methods defined for a given generic function. -
selectMethod
for getting the definition of a specific method. -
which,DelayedArray-method in the DelayedArray package for an example of a specific
which
method (defined for DelayedArray objects). -
BiocGenerics for a summary of all the generics defined in the BiocGenerics package.
Examples
which
showMethods("which")
selectMethod("which", "ANY") # the default method
library(DelayedArray)
showMethods("which")
## The which() method for DelayedArray objects:
selectMethod("which", "DelayedArray")