PPtreeExt
Projection Pursuit Classification Tree Extensions
v0.1.0
·
Feb 6, 2026
·
GPL (>= 2)
Description
Implements extensions to the projection pursuit tree algorithm for supervised classification, see Lee, Y. (2013), <doi:10.1214/13-EJS810> and Lee, E-K. (2018) <doi:10.18637/jss.v083.i08>. The algorithm is changed in two ways: improving prediction boundaries by modifying the choice of split points-through class subsetting; and increasing flexibility by allowing multiple splits per group.
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| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | OK |
| r-devel-linux-x86_64-debian-gcc | OK |
| 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 | ERROR |
| r-oldrel-macos-x86_64 | ERROR |
| 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 (16 non-OK)
OK
r-devel-linux-x86_64-debian-clang
*
OK
r-devel-linux-x86_64-debian-gcc
*
OK
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
*
ERROR
r-oldrel-macos-arm64
examples
Running examples in ‘PPtreeExt-Ex.R’ failed The error most likely occurred in: > ### Name: PPtreeExt_split > ### Title: Projection Pursuit Classification Tree with Random Variable > ### Selection > ### Aliases: PPtreeExt_split > ### Keywords: tree > > ### ** Examples > > data(penguins) Warning in data(penguins) : data set ‘penguins’ not found > penguins <- na.omit(penguins[, -c(2,7, 8)]) Error: object 'penguins' not found Execution halted
NOTE
r-oldrel-macos-arm64
installed package size
installed size is 5.5Mb
sub-directories of 1Mb or more:
libs 4.9Mb
ERROR
r-oldrel-macos-x86_64
examples
Running examples in ‘PPtreeExt-Ex.R’ failed The error most likely occurred in: > ### Name: PPtreeExt_split > ### Title: Projection Pursuit Classification Tree with Random Variable > ### Selection > ### Aliases: PPtreeExt_split > ### Keywords: tree > > ### ** Examples > > data(penguins) Warning in data(penguins) : data set ‘penguins’ not found > penguins <- na.omit(penguins[, -c(2,7, 8)]) Error: object 'penguins' not found Execution halted
NOTE
r-oldrel-macos-x86_64
installed package size
installed size is 5.7Mb
sub-directories of 1Mb or more:
libs 5.0Mb
ERROR
r-oldrel-windows-x86_64
examples
Running examples in 'PPtreeExt-Ex.R' failed The error most likely occurred in: > ### Name: PPtreeExt_split > ### Title: Projection Pursuit Classification Tree with Random Variable > ### Selection > ### Aliases: PPtreeExt_split > ### Keywords: tree > > ### ** Examples > > data(penguins) Warning in data(penguins) : data set 'penguins' not found > penguins <- na.omit(penguins[, -c(2,7, 8)]) Error: object 'penguins' not found Execution halted
OK
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
*
Check History
ERROR 11 OK · 0 NOTE · 0 WARNING · 3 ERROR · 0 FAILURE Mar 9, 2026
ERROR
r-oldrel-macos-arm64
installed package size
installed size is 5.5Mb
sub-directories of 1Mb or more:
libs 4.9Mb
ERROR
r-oldrel-macos-x86_64
installed package size
installed size is 5.7Mb
sub-directories of 1Mb or more:
libs 5.0Mb
ERROR
r-oldrel-windows-x86_64
examples
Running examples in 'PPtreeExt-Ex.R' failed The error most likely occurred in: > ### Name: PPtreeExt_split > ### Title: Projection Pursuit Classification Tree with Random Variable > ### Selection > ### Aliases: PPtreeExt_split > ### Keywords: tree > > ### ** Examples > > data(penguins) Warning in data(penguins) : data set 'penguins' not found > penguins <- na.omit(penguins[, -c(2,7, 8)]) Error: object 'penguins' not found Execution halted
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0.1.0
Mar 9, 2026