epenreg.save: Custom Functions for Disk I/O in 'EnsemblePenReg' Package

In EnsemblePenReg: Extensible Classes and Methods for Penalized-Regression-Based Integration of Base Learners

Description

These functions can be used whether filemethod flag is set to TRUE or FALSE during the epenreg call. Note that epenreg.load ‘returns’ the estimation object (in contrast to the standard load method).

Usage

epenreg.save(obj, file)
epenreg.load(file)

Arguments

obj	Object of classes "epenreg" (and possibly "epenreg.file"), usually the output of call to function epenreg.
file	Filepath to where obj must be saved to / loaded from.

Value

Function epenreg.load returns the saved obj, with estimation files automatically copied to R temporary directory, and filepaths inside the obj fields updated to point to these new filepaths.

Author(s)

Mansour T.A. Sharabiani, Alireza S. Mahani

See Also

epenreg

Examples

## Not run: 
data(servo)
myformula <- class~motor+screw+pgain+vgain
perc.train <- 0.7
index.train <- sample(1:nrow(servo), size = round(perc.train*nrow(servo)))
data.train <- servo[index.train,]
data.predict <- servo[-index.train,]

est <- epenreg(myformula, data.train, ncores=2, filemethod=TRUE
  , baselearner.control=epenreg.baselearner.control(baselearners="knn"))
epenreg.save(est, "somefile")
rm(est) # alternatively, exit and re-launch R session
est.loaded <- epenreg.load("somefile")
newpred <- predict(est.loaded, data.predict)

# can also be used with filemethod set to FALSE
est <- epenreg(myformula, data.train, ncores=2, filemethod=FALSE
  , baselearner.control=epenreg.baselearner.control(baselearners="knn"))
epenreg.save(est, "somefile")
rm(est) # alternatively, exit and re-launch R session
est.loaded <- epenreg.load("somefile")
newpred <- predict(est.loaded, data.predict)

## End(Not run)

EnsemblePenReg documentation built on May 2, 2019, 7:29 a.m.