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PPtreeExt

Projection Pursuit Classification Tree Extensions

v0.1.0 · Feb 6, 2026 · GPL (>= 2)
CRAN GitHub Mirror

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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CRAN Check Status

3 ERROR
4 NOTE
7 OK
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 NOTE
r-oldrel-macos-arm64 ERROR
r-oldrel-macos-x86_64 ERROR
r-oldrel-windows-x86_64 ERROR
r-patched-linux-x86_64 NOTE
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 (9 non-OK)
NOTE r-devel-linux-x86_64-debian-clang

compiled code

File ‘PPtreeExt/libs/PPtreeExt.so’:
  Found non-API call to R: ‘R_UnboundValue’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.
NOTE r-devel-linux-x86_64-debian-gcc

compiled code

File ‘PPtreeExt/libs/PPtreeExt.so’:
  Found non-API call to R: ‘R_UnboundValue’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.
NOTE r-devel-windows-x86_64

compiled code

File 'PPtreeExt/libs/x64/PPtreeExt.dll':
  Found non-API call to R: 'R_UnboundValue'

Compiled code should not call non-API entry points in R.

See 'Writing portable packages' in the 'Writing R Extensions' manual,
and section 'Moving into C API compliance' for issues with the use of
non-API entry points.
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
NOTE r-patched-linux-x86_64

compiled code

File ‘PPtreeExt/libs/PPtreeExt.so’:
  Found non-API call to R: ‘R_UnboundValue’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

Check History

ERROR 11 OK · 0 NOTE · 0 WARNING · 3 ERROR · 0 FAILURE Mar 10, 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

Dependency Network

Dependencies Reverse dependencies Rcpp ggplot2 shiny MASS gridExtra MixSim PPtreeViz PPtreeExt

Version History

new 0.1.0 Mar 10, 2026