realize {DelayedArray} | R Documentation |
Realize a DelayedArray object in memory or on disk.
realize(x, ...) ## S4 method for signature 'ANY' realize(x, BACKEND=getRealizationBackend())
x |
The array-like object to realize. |
... |
Additional arguments passed to methods. |
BACKEND |
A single string specifying the name of the realization backend.
Use the current realization backend by default i.e. the backend
returned by |
A DelayedArray object. More precisely, it returns
DelayedArray(as.array(x))
when the backend is set to
NULL
(the default). Otherwise it returns an instance of the
class associated with the specified backend (which should extend
DelayedArray).
getRealizationBackend
and
setRealizationBackend
for getting and setting
the current realization backend.
DelayedArray objects.
RleArray objects.
HDF5Array objects in the HDF5Array package.
array objects in base R.
library(HDF5Array) toy_h5 <- system.file("extdata", "toy.h5", package="HDF5Array") h5ls(toy_h5) M1 <- HDF5Array(toy_h5, "M1") M2 <- HDF5Array(toy_h5, "M2") M3 <- rbind(log(M1), t(M2)) supportedRealizationBackends() getRealizationBackend() # backend is set to NULL realize(M3) # realization as ordinary array setRealizationBackend("RleArray") getRealizationBackend() # backend is set to "RleArray" realize(M3) # realization as RleArray object setRealizationBackend("HDF5Array") getRealizationBackend() # backend is set to "HDF5Array" realize(M3) # realization in HDF5 file