尝试首次运行fancyrpartplot并遇到错误。
> fancyRpartPlot(rpart.sub1)
Error in loadNamespace(name) : there is no package called ‘rpart.plot’
我已经搜索了，但是找不到解决方案。我尝试过删除拨浪鼓和RGtk2，并不断收到相同的错误。认为与GTK +有关，但找不到任何显示如何删除和重新安装GTK +的内容
> remove.packages("RGtk2")
Removing package from ‘C:/Program Files/R/R-3.1.0/library’
(as ‘lib’ is unspecified)
> remove.packages("rattle")
Removing package from ‘C:/Program Files/R/R-3.1.0/library’
(as ‘lib’ is unspecified)
Restarting R session...
> install.packages("rattle")
also installing the dependency ‘RGtk2’
trying URL 'http://cran.rstudio.com/bin/windows/contrib/3.1/RGtk2_2.20.31.zip'
Content type 'application/zip' length 13914471 bytes (13.3 Mb)
opened URL
downloaded 13.3 Mb
trying URL 'http://cran.rstudio.com/bin/windows/contrib/3.1/rattle_4.0.0.zip'
Content type 'application/zip' length 3728887 bytes (3.6 Mb)
opened URL
downloaded 3.6 Mb
package ‘RGtk2’ successfully unpacked and MD5 sums checked
package ‘rattle’ successfully unpacked and MD5 sums checked
The downloaded binary packages are in
C:\Users\xxx\AppData\Local\Temp\RtmpsLxgOv\downloaded_packages
> require(RGtk2)
Loading required package: RGtk2
Error in inDL(x, as.logical(local), as.logical(now), ...) :
unable to load shared object 'C:/Program Files/R/R-3.1.0/library/RGtk2/libs/x64/RGtk2.dll':
LoadLibrary failure: The specified module could not be found.
In addition: Warning message:
package ‘RGtk2’ was built under R version 3.1.3
trying URL 'http://ftp.gnome.org/pub/gnome/binaries/win64/gtk+/2.22/gtk+-bundle_2.22.1-20101229_win64.zip'
Content type 'application/zip' length 25830230 bytes (24.6 Mb)
opened URL
downloaded 24.6 Mb
Learn more about GTK+ at http://www.gtk.org
If the package still does not load, please ensure that GTK+ is installed and that it is on your PATH environment variable
IN ANY CASE, RESTART R BEFORE TRYING TO LOAD THE PACKAGE AGAIN
Warning messages:
1: Failed to load RGtk2 dynamic library, attempting to install it.
2: In dir.create(config_path, recursive = TRUE) :
'C:\Program Files\R\R-3.1.0\library\RGtk2\gtk\x64\etc\gtk-2.0' already exists
> require(rattle)
Loading required package: rattle
Rattle: A free graphical interface for data mining with R.
Version 4.0.0 Copyright (c) 2006-2015 Togaware Pty Ltd.
Type 'rattle()' to shake, rattle, and roll your data.
Warning message:
package ‘rattle’ was built under R version 3.1.3
> fancyRpartPlot(rpart.sub1)
Error in loadNamespace(name) : there is no package called ‘rpart.plot’
有趣的是，它说缺少
C:/Program Files/R/R-3.1.0/library/RGtk2/libs/x64/RGtk2.dll的文件实际上在那里，我已经手动检查过。在这一点上，我已经多次删除了拨浪鼓和RGtk2。每次RGtk2再次安装GTK +时，都不会改变。
任何帮助，不胜感激。
编辑：应该添加，如果我键入
rattle()嘎嘎声似乎正确加载。 最佳答案
每个@phiver rpart.plot丢失