SimpleList-class {S4Vectors} | R Documentation |
SimpleList objects
Description
The (non-virtual) SimpleList class extends the List virtual class.
Details
The SimpleList class is the simplest, most generic concrete implementation of the List abstraction. It provides an implementation that subclasses can easily extend.
In a SimpleList object the list elements are stored internally in an ordinary list.
Constructor
See the List man page for a quick overview of how to construct List objects in general.
The following constructor is provided for SimpleList objects:
SimpleList(...)
:Takes possibly named objects as elements for the new SimpleList object.
Accessors
Same as for List objects. See the List man page for more information.
Coercion
All the coercions documented in the List man page apply to SimpleList objects.
Subsetting
Same as for List objects. See the List man page for more information.
Looping and functional programming
Same as for List objects. See ?`List-utils`
for
more information.
Displaying
When a SimpleList object is displayed, the "Simple" prefix is removed
from the real class name of the object.
See classNameForDisplay
for more information about this.
See Also
-
List objects for the parent class.
The CompressedList class defined in the IRanges package for a more efficient alternative to SimpleList.
The SimpleIntegerList class defined in the IRanges package for a SimpleList subclass example.
The DataFrame class for another SimpleList subclass example.
Examples
## Displaying a SimpleList object:
x1 <- SimpleList(a=letters, i=Rle(22:20, 4:2))
class(x1)
## The "Simple" prefix is removed from the real class name of the
## object:
x1
library(IRanges)
x2 <- IntegerList(11:12, integer(0), 3:-2, compress=FALSE)
class(x2)
## The "Simple" prefix is removed from the real class name of the
## object:
x2
## This is controlled by internal helper classNameForDisplay():
classNameForDisplay(x2)