

> On 31 May 2014, at 16:00, Davood Tofighi <dtofighi@gmail.com> wrote:
> 
> I have a follow up question. How can I install gfortran-4.8.2 on the Mavericks? 

See the manual: link below.

> 
>> On Tuesday, April 22, 2014 3:04:27 AM UTC-4, Prof Brian Ripley wrote:
>> I've noticed some confusion about which CRAN installer package to use, 
>> and even reluctance to update to 3.1.0.  So some pointers for Mavericks 
>> users 
>> 
>> 1) AFAIK no users are going to be worse off using the Snow Leopard build 
>> of 3.1.0 rather than the only (Snow Leopard) build of 3.0.x. 
>> 
>> 2) The Mavericks build has support for C++11-using packages (there are 
>> currently less than a handful) and some performance improvements from 
>> its later compilers (and in rare cases these are large). 
>> 
>> 3) If you rely on binary packages with are not available for the 
>> Mavericks build, install the Snow Leopard one.  Currently that includes 
>> CRAN packages rgdal and rjags and all the BioC packages. 
>> 
>> 4) If you install packages from source, you will be most likely better 
>> off with the Mavericks build. 
>> 
>> 5) The two builds need different Fortran compilers installed: you can 
>> have both compilers at once.  The details are at 
>> http://cran.r-project.org/doc/manuals/r-release/R-admin.html#OS-X .  As 
>> far as I know a Fortran compiler is only needed if you install packages 
>> from sources. 
>> 
>> Some of the Mavericks binary packages are missing for good reason.  The 
>> C++ binary interface for the Xcode 5.x compilers in Mavericks is 
>> completely different, so external software has to be compiled with those 
>> compilers.  This affects CRAN packages 
>> 
>> RQuantlib RProtoBuf RVowalWabbit rgdal rjags rzmq 
>> 
>> Most of these can be gotten to work (see the results labelled 
>> r-devel-osx-x86_64-clang at 
>> http://cran.r-project.org/web/checks/check_summary.html) if compiling 
>> from sources.  There are packages with badly-written C++ which do not 
>> compile under Mavericks, but as we have been chasing the CRAN 
>> maintainers for a few months there are very few left (the main example 
>> is BioC's package mzR). 
>> 
>> We had expected that by this time Mavericks users would be in a 
>> majority, but it seems the proportion is in the 40s (%).  Thus for R 
>> 3.1.0 most of the effort has gone into the Snow Leopard build: expect 
>> that to change by R 3.2.0 in a year's time. 
>> 
>> -- 
>> Brian D. Ripley,                  rip...@stats.ox.ac.uk 
>> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/ 
>> University of Oxford,             Tel:  +44 1865 272861 (self) 
>> 1 South Parks Road,                     +44 1865 272866 (PA) 
>> Oxford OX1 3TG, UK                Fax:  +44 1865 272595 
>> 
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