답변 감사드립니다. 교수님  

그런데 ggiraphExtra  설치시 에러 메시지가 납니다

> devtools::install_github("cardiomoon/ggiraphExtra")
Downloading GitHub repo cardiomoon/ggiraphExtra@master
Installing 2 packages: ggforce, units
Installing packages into ‘/home/gogo930/R/x86_64-redhat-linux-gnu-library/3.4’
(as ‘lib’ is unspecified)
URL 'https://cran.rstudio.com/src/contrib/ggforce_0.1.3.tar.gz'을 시도합니다
Content type 'application/x-gzip' length 1489319 bytes (1.4 MB)
==================================================
downloaded 1.4 MB

URL 'https://cran.rstudio.com/src/contrib/units_0.6-1.tar.gz'을 시도합니다
Content type 'application/x-gzip' length 916235 bytes (894 KB)
==================================================
downloaded 894 KB

* installing *source* package ‘units’ ...
** 패키지 ‘units’는 성공적으로 압축해제되었고, MD5 sums 이 확인되었습니다
configure: units: 0.6-1
checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether g++ -m64 accepts -g... yes
checking how to run the C++ preprocessor... g++ -m64 -E
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for stdbool.h that conforms to C99... yes
checking for _Bool... no
checking for error_at_line... yes
checking for gcc... gcc -m64 -std=gnu99
checking whether we are using the GNU C compiler... yes
checking whether gcc -m64 -std=gnu99 accepts -g... yes
checking for gcc -m64 -std=gnu99 option to accept ISO C89... none needed
checking for XML_ParserCreate in -lexpat... yes
checking udunits2.h usability... no
checking udunits2.h presence... no
checking for udunits2.h... no
checking udunits2/udunits2.h usability... no
checking udunits2/udunits2.h presence... no
checking for udunits2/udunits2.h... no
checking for ut_read_xml in -ludunits2... no
configure: error: in `/tmp/RtmpnqC1Mn/R.INSTALL793540730e4/units':
configure: error: 
--------------------------------------------------------------------------------
  Configuration failed because libudunits2.so was not found. Try installing:
    * deb: libudunits2-dev (Debian, Ubuntu, ...)
    * rpm: udunits2-devel (Fedora, EPEL, ...)
    * brew: udunits (OSX)
  If udunits2 is already installed in a non-standard location, use:
    --configure-args='--with-udunits2-lib=/usr/local/lib'
  if the library was not found, and/or:
    --configure-args='--with-udunits2-include=/usr/include/udunits2'
  if the header was not found, replacing paths with appropriate values.
  You can alternatively set UDUNITS2_INCLUDE and UDUNITS2_LIBS manually.
--------------------------------------------------------------------------------

See `config.log' for more details
ERROR: configuration failed for package ‘units’
* removing ‘/home/gogo930/R/x86_64-redhat-linux-gnu-library/3.4/units’
Error in i.p(...) : 
  (converted from warning) installation of package ‘units’ had non-zero exit status

=====================================================

 즉  ggiraphExtra 를 설치하려면   units, ggforce라는 패키지가 필요한데

 units 라는 패키지를 설치하려면 libudunits2.so 를 설치해야 하네요

 그런데 잘 모르지만 리눅스 환경에서 설치를 해야하는 것 같습니디ㅏ

 rstudio server 가  리눅스에 있어서 그런것인지..

 https://stackoverflow.com/questions/42287164/install-udunits2-package-for-r3-3

 여기에 보면 udunits2  설치에 대한 내용이 나옵니다. 하지만 댓글들을 보면

 역시 리눅스 사용자들인 것 같네요..

 윈도우에서는 쓸수있는 방법이 없는 것일까요?

CRAN에서 설치해보셔요.

install.packages("ggiraphExtra") 

윈도우즈에서 설치시에도 문제 없는 것으로 알고 있습니다.

제 컴퓨테 있는 rstudio에서는 실행이 되는데, web rstudio에서는 역시나 안되네요..

우선 컴퓨터로 작업하고 왜 그런지 한번 확인해보겠습니다.

감사합니다 교수님