Marc Schwartz wrote:
On Mar 5, 2010, at 3:45 PM, Ryan Garner wrote:
I just installed R on Redhat Linux at work for the first time and have two
questions.
1. I tried to install R to have png and cairo capabilities and was
unsuccessful. Before running make, I ran ./configure --with-libpng=yes
--with-x=no --with-cairo=yes --with-readline-yes . R installed fine, but
when I run R and type capabilities()
capabilities()
jpeg png tiff tcltk X11 aqua http/ftp
sockets
TRUE TRUE TRUE TRUE FALSE FALSE TRUE TRUE
l ibxml fifo cledit iconv NLS profmem cairo
TRUE FALSE TRUE TRUE TRUE TRUE FALSE
Why are png and cairo still FALSE?
2. I would also like to have X11 enabled. From reading the message board,
the consesus seems to be to install xorg-dev. I'm unable to do this because
I don't have root or super user priveleges. But if I'm able to log into my
work servers with PuTTY and Xming and run xemacs or xvim, does this mean
that X11 is already installed somewhere? If so, how do I specify this when
doing ./configure?
There is conflicting information here.
You specified --with-x=no, yet you want X. You indicate that you "installed R",
yet you do not have root access.
In order to compile R from source and have the functionality that you seem to want, you will need either have root access to install the required libraries or have the SysAdmin do so. In order to install R using the defaults, you need to have root access or have your SysAdmin do so.
The required libraries are the 'dev' or development versions of the RPMs for
each of the components such as libpng, cairo, readline and X. These contain the
header files (.h) that are required to compile R from source and support these
features. These issues are described in the R Installation and Administration
manual:
http://cran.r-project.org/doc/manuals/R-admin.html
The easier option would be to have the SysAdmin simply use the available RPMs
for R rather than compiling from source. I presume that by Red Hat Linux, you
mean RHEL. You can point your SysAdmin to the EPEL
(http://fedoraproject.org/wiki/EPEL) which provides pre-built RPMs for R,
installable by using 'yum'.
In addition to Marc, CRAN also provides .rpm version of R [1]. It could
be that these are newer than the ones on EPEL, but I'm not sure.
cheers,
Paul
[1] http://cran.r-project.org/bin/linux/redhat/
If you can use ssh to login to the server using PuTTY and that supports X as
you indicate, then it means that the server has been configured to support 'X
forwarding' and that your ssh login is using the '-X' option to request it on
your end of the connection. This means that the server supports X, but may or
may not have the X related development RPMs installed, which as I note, are
required to compile R from source and support X. Xming, on the other hand, I
believe provides its own X server implementation, which potentially brings
other issues into play. I have not used it, so would defer to others on the
details.
HTH,
Marc Schwartz
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Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
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