RaSEn
Random Subspace Ensemble Classification and Variable Screening
Description
We propose a general ensemble classification framework, RaSE algorithm, for the sparse classification problem. In RaSE algorithm, for each weak learner, some random subspaces are generated and the optimal one is chosen to train the model on the basis of some criterion. To be adapted to the problem, a novel criterion, ratio information criterion (RIC) is put up with based on Kullback-Leibler divergence. Besides minimizing RIC, multiple criteria can be applied, for instance, minimizing extended Bayesian information criterion (eBIC), minimizing training error, minimizing the validation error, minimizing the cross-validation error, minimizing leave-one-out error. There are various choices of base classifier, for instance, linear discriminant analysis, quadratic discriminant analysis, k-nearest neighbour, logistic regression, decision trees, random forest, support vector machines. RaSE algorithm can also be applied to do feature ranking, providing us the importance of each feature based on the selected percentage in multiple subspaces. RaSE framework can be extended to the general prediction framework, including both classification and regression. We can use the selected percentages of variables for variable screening. The latest version added the variable screening function for both regression and classification problems.
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CRAN Check Status
Show all 14 flavors
| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | NOTE |
| r-devel-linux-x86_64-debian-gcc | NOTE |
| r-devel-linux-x86_64-fedora-clang | OK |
| r-devel-linux-x86_64-fedora-gcc | OK |
| r-devel-macos-arm64 | OK |
| r-devel-windows-x86_64 | OK |
| r-oldrel-macos-arm64 | NOTE |
| r-oldrel-macos-x86_64 | NOTE |
| r-oldrel-windows-x86_64 | ERROR |
| r-patched-linux-x86_64 | OK |
| r-release-linux-x86_64 | OK |
| r-release-macos-arm64 | OK |
| r-release-macos-x86_64 | OK |
| r-release-windows-x86_64 | OK |
Check details (5 non-OK)
CRAN incoming feasibility
Maintainer: ‘Ye Tian <ye.t@columbia.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Ye",
family = "Tian",
role = c("aut", "cre"),
email = "ye.t@columbia.edu"),
person(given = "Yang",
family = "Feng",
role = "aut"))
as necessary.
CRAN incoming feasibility
Maintainer: ‘Ye Tian <ye.t@columbia.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Ye",
family = "Tian",
role = c("aut", "cre"),
email = "ye.t@columbia.edu"),
person(given = "Yang",
family = "Feng",
role = "aut"))
as necessary.
installed package size
installed size is 5.2Mb
sub-directories of 1Mb or more:
data 4.5Mb
installed package size
installed size is 5.2Mb
sub-directories of 1Mb or more:
data 4.5Mb
re-building of vignette outputs
Error(s) in re-building vignettes: --- re-building 'RaSEn-demo.Rmd' using rmarkdown ! Package pdftex.def Error: File `f67b1baed3943fb96d8f6498943603b6ca04bb50.pdf' not found: using draft setting. Error: processing vignette 'RaSEn-demo.Rmd' failed with diagnostics: LaTeX failed to compile D:/RCompile/CRANpkg/local/4.4/RaSEn.Rcheck/vign_test/RaSEn/vignettes/RaSEn-demo.tex. See https://yihui.org/tinytex/r/#debugging for debugging tips. See RaSEn-demo.log for more info. --- failed re-building 'RaSEn-demo.Rmd' SUMMARY: processing the following file failed: 'RaSEn-demo.Rmd' Error: Vignette re-building failed. Execution halted
Check History
ERROR 9 OK · 4 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Mar 30, 2026
CRAN incoming feasibility
Maintainer: ‘Ye Tian <ye.t@columbia.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Ye",
family = "Tian",
role = c("aut", "cre"),
email = "ye.t@columbia.edu"),
person(given = "Yang",
family = "Feng",
role = "aut"))
as necessary.
CRAN incoming feasibility
Maintainer: ‘Ye Tian <ye.t@columbia.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Ye",
family = "Tian",
role = c("aut", "cre"),
email = "ye.t@columbia.edu"),
person(given = "Yang",
family = "Feng",
role = "aut"))
as necessary.
installed package size
installed size is 5.2Mb
sub-directories of 1Mb or more:
data 4.5Mb
installed package size
installed size is 5.2Mb
sub-directories of 1Mb or more:
data 4.5Mb
re-building of vignette outputs
Error(s) in re-building vignettes: --- re-building 'RaSEn-demo.Rmd' using rmarkdown ! Package pdftex.def Error: File `f67b1baed3943fb96d8f6498943603b6ca04bb50.pdf' not found: using draft setting. Error: processing vignette 'RaSEn-demo.Rmd' failed w ...[truncated]... ps://yihui.org/tinytex/r/#debugging for debugging tips. See RaSEn-demo.log for more info. --- failed re-building 'RaSEn-demo.Rmd' SUMMARY: processing the following file failed: 'RaSEn-demo.Rmd' Error: Vignette re-building failed. Execution halted
NOTE 10 OK · 4 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
CRAN incoming feasibility
Maintainer: ‘Ye Tian <ye.t@columbia.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Ye",
family = "Tian",
role = c("aut", "cre"),
email = "ye.t@columbia.edu"),
person(given = "Yang",
family = "Feng",
role = "aut"))
as necessary.
CRAN incoming feasibility
Maintainer: ‘Ye Tian <ye.t@columbia.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Ye",
family = "Tian",
role = c("aut", "cre"),
email = "ye.t@columbia.edu"),
person(given = "Yang",
family = "Feng",
role = "aut"))
as necessary.
installed package size
installed size is 5.2Mb
sub-directories of 1Mb or more:
data 4.5Mb
installed package size
installed size is 5.2Mb
sub-directories of 1Mb or more:
data 4.5Mb