mergeObj: merges eNetXplorer objects with different alphas

In eNetXplorer: Quantitative Exploration of Elastic Net Families for Generalized Linear Models

Description

Upon sequential or parallel execution of two or more eNetXplorer runs with different values of the mixing parameter alpha, and assuming the objects from those runs have been saved, this function creates a new eNetXplorer object that merges the alpha values. It currently supports linear (gaussian), logistic (binomial), and Cox regression models.

Usage

mergeObj(source_obj, source_dir=getwd(), dest_obj="eNet_merged.Robj",
dest_dir=NULL)

Arguments

source_obj	Vector with the names of two or more eNetXplorer objects.
source_dir	Source directory. Default is the working directory.
dest_obj	Name of the merged eNetXplorer object.
dest_dir	Destination directory. If not specified, it will use source_dir as default.

Author(s)

Julian Candia and John S. Tsang
Maintainer: Julian Candia [e-mail]

See Also

eNetXplorer

Examples

# we first generate two objects over different alpha values, then merge them.
data(QuickStartEx)
working_dir = tempdir()
fit1 = eNetXplorer(x=QuickStartEx$predictor,y=QuickStartEx$response,
family="gaussian",alpha=seq(0,1,by=0.2),save_obj=TRUE,dest_dir=working_dir,
dest_obj="eNet1.Robj",n_run=20,n_perm_null=10,seed=111)
fit2 = eNetXplorer(x=QuickStartEx$predictor,y=QuickStartEx$response,
family="gaussian",alpha=seq(0.1,0.9,by=0.2),save_obj=TRUE,dest_dir=working_dir,
dest_obj="eNet2.Robj",n_run=20,n_perm_null=10,seed=111)
mergeObj(source_obj=c("eNet1.Robj","eNet2.Robj"),source_dir=working_dir)

# we generate summary PDFs to compare the results before and after merging.
summaryPDF(fit1, dest_file="eNet1.pdf",dest_dir=working_dir)
summaryPDF(fit2, dest_file="eNet2.pdf",dest_dir=working_dir)
load(file.path(working_dir,"eNet_merged.Robj"))
summaryPDF(eNet,dest_file="eNet_merged.pdf",dest_dir=working_dir)

eNetXplorer documentation built on Aug. 30, 2020, 1:06 a.m.