R rattle fancyrpartplot错误

Question

第一次尝试运行fancyrpartplot时遇到错误。

> fancyRpartPlot(rpart.sub1)
Error in loadNamespace(name) : there is no package called ‘rpart.plot’

我找了又找，但还是找不到解决方案。我试着删除rattle和RGtk2，但总是收到相同的错误。我认为这与GTK+有关，但找不到任何说明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的文件实际上就在那里，我手动检查过了。

至此，我已经多次删除了rattle和RGtk2。每次RGtk2都会再次安装GTK+，但没有任何变化。

非常感谢您的帮助。

编辑:应该已经添加了，如果我输入rattle() rattle似乎正确加载。

Answer 1

缺少Per @phiver rpart.plot

Answer 2

根据警告“loadNamespace(name)中的错误:没有名为‘rpart.plot’的包”，输入: install.packages("rpart.plot")。