[R] Problem installing R 2.12.1 on Mac OS X Yosemite 10.10.5

[Martin Maechler]

>>>>> David Winsemius <dwinsemius at comcast.net>
>>>>>     on Wed, 11 Jan 2017 22:45:38 -0800 writes:

    >> On Jan 11, 2017, at 10:20 PM, David Winsemius <dwinsemius at comcast.net> wrote:
    >> 
    >> 
    >>> On Jan 11, 2017, at 4:15 PM, Florence Lui <floorrinse at gmail.com> wrote:
    >>> 
    >>> I'm trying to download version 2.12.1 of R in order for it to be compatible
    >>> with the version of SPSS I have on my computer (SPSS V. 20), so that I can
    >>> install the Essentials for R plugin for SPSS.
    >>> 
    >>> However, when I try to install this version of R, I get a popup saying it
    >>> can't be installed because it requires Mac OS X 10.5 or higher (see
    >>> attached).
    >> 
    >> I suspect that there is code that does a comparison of the character version of your numeric version of OSX and finds that it is less than "10.5" since if you do that comparison at your console you will see 
    >> 
    >>> "10.10" < "10.5"
    >> [1] TRUE
    >> 
    >> 
    >>> But I do have a higher operating system--Mac OS X Yosemite
    >>> 10.10.5.
    >>> 
    >>> Any idea what might be wrong?
    >> 
    >> I suspect this has been discussed with in the past. Search the Archives of the R-SIG-Mac mailing list (which would have been the correct place to post this question in the first place.) I have vague memory that such a request appeared in the not so distant past.

    > I think this is the message I remember, but probably encountered it during a different search since it cannot be called recent. Peter Dalgaard suggests temporarily setting your version to 10.9.

    > http://markmail.org/message/rl3ym7cjo45gpo5n?q=list:org%2Er-project+spss+version

    > http://markmail.org/search/?q=list%3Aorg.r-project+spss+version#query:list%3Aorg.r-project%20spss%20version+page:1+mid:rl3ym7cjo45gpo5n+state:results


    > Despite being a Mac user of long standing, I had no idea how one would do that, but thought a google-search would help:

    > http://justindaigle.com/blog/2010/02/tutorial-change-mac-os-x-system-version/

    > Perhaps the SPSS administration should distribute free copies of their software to all of the R-Core, since they seem to expect that R-help should be the unpaid support staff for a commercial product.

Well, but don't we all want to reduce unnecessary waste - thinking
of CO2 when burning all those CDs ?
Do you think R core would have any other use for such free copies
but to heat a bit during this cold (northern hemisphere) winter ?

;-)

Martin