R

[Abhinav Maurya]

FWIW, Matlab has been almost forgotten from the data science dictionary. R
and Python reign supreme. Julia and Scala are likely usurpers. The mention
of Haskell makes me glad, but Scala does just as good a job as a language
and a platform.

Best,
Abhinav

On Tue, Sep 29, 2015 at 9:23 PM, Predrag Punosevac <predragp at cs.cmu.edu>
wrote:

> Kirthevasan Kandasamy <kandasamy at cmu.edu> wrote:
>
> > alternatively,
> > you could switch to matlab :P
> >
>
> That is a bad advise! I am serious.
>
> As you know both MATLAB and R are domain specific languages. The only
> data structure recognized by MATLAB is matrix.  Two dimensional matrix
> of a finite subset of rational numbers. How are you going to put a
> string into the matrix?  Ugly yeah!
>
> On the another hand basic data types in R are:
>
> - Numeric
> - Integer
> - Complex
> - Logical
> - Character
>
>
> which means that with exception of pointers R recognizes all classic
> primitive data types plus a buil-in data type "Complex" (Fortran lovers
> will remember that one). R has more packages for data mining and
> machine learning than any other language and this comes from a mouth of
> a Pythonista.
>
>
> Now why some nut cases like Peter and me like Python better than R. Well
> unlike R, Python is general purpose interpreted language which has two
> great libraries for dealing with data mining and machine learning Pandas
> and Scikit-learn. They are not quite as good as R (they are getting
> there) but we are completely unconstrained by the domain of application
> so important to R.
>
>
> We could also talk about other alternatives like Perl, Haskell, Julia,
> Lua alike.
>
> Cheers,
> Predrag
>
>
> > On Tue, Sep 29, 2015 at 8:35 PM, Predrag Punosevac <predragp at cs.cmu.edu>
> > wrote:
> >
> > > Maria De Arteaga Gonzalez <mdeartea at andrew.cmu.edu> wrote:
> > >
> > > > Hi Predrag,
> > > >
> > > > My desktop has R 3.2 installed, however, many of the packages that I
> use
> > > for my research only work for R 3.1, could I downgrade? Thanks,
> > > >
> > >
> > > Actually after trying to downgrade your version of R for about 45
> > > minutes I realized that is a wrong way to deal with the problem.
> > > Downgrading packages is very difficult as all dependencies have to be
> > > resolved manually. In system administration we call that Red Hat Hell.
> > > The real way to deal with your problem is to upgrade manually installed
> > > package. Kyle brought to my attention that automatics updates of R
> > > (which I turned on)  are braking manually installed R packages. There
> is
> > > a way to deal with it. I just need to read about 20 pages of the
> > > documentation before I can do it.
> > >
> > > Between plotting in R shell is broken since last week due to shady QA
> by
> > > EPEL people. I am hoping that the upstream will fix the problem soon
> and
> > > that will not have to "downgrade" things.
> > >
> > > Finally Dr. Dubrawski have overheard me using word obsolete in the same
> > > sentence with R. Our R is the latest and the greatest (or maybe not so
> > > great). Our installation of RStudio (IDE) is obsolete as upstream cares
> > > only for Windows. The upshot of having the old version of RStudio is
> > > that R plots still work from it.
> > >
> > > Best,
> > > Predrag
> > >
> > >
> > >
> > > > Maria
> > > >
> > > > Mar?a De Arteaga
> > > > PhD Student in Machine Learning and Public Policy
> > > > Carnegie Mellon University
> > >
> > >
>
>
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