1) How readable is that though, unless you know R already? `f = y ~ x1 +
x2` really doesn't mean anything at all to me...
2) People say that we should just use `string(a,b,c)` and `repeat(a,n)` for
string concatenation and repetition...
that makes no sense for code where you find many string concatenations
in the same line...
3) Even in the code you referenced, the operator is only used once every
few lines... so why
not have it be: `formula(y,x1+x2)` or `@formula(y,x1+x2)` instead?
That seems MUCH more readable to me, and doesn't seem like an undue
burden on people using DataFrames,
as it doesn't seem to be used that frequently...
Scott
On Monday, April 27, 2015 at 11:42:10 AM UTC-4, Tamas Papp wrote:
>
> ~ is an implementation of R's formula interface, which many find useful,
> even essential for statistics; calling it "pollution" is a somewhat
> heterodox use of the term.
>
> See
> https://github.com/JuliaStats/DataFrames.jl/blob/master/test/formula.jl
> for nice examples.
>
> Best,
>
> Tamas
>
> On Mon, Apr 27 2015, François Fayard <francoi...@gmail.com <javascript:>>
> wrote:
>
> > It comes back to the C++ coding guide from Google. One of the most
> > important rule is : "don't polute the global namespace".
> >
> > On Monday, April 27, 2015 at 5:07:15 PM UTC+2, Scott Jones wrote:
> >>
> >> I had actually suggested that... I still think it is a good idea, but I
> >> think some other packages already pre-empted it's use as
> >> a binary operator (in a way that didn't really make much sense to me -
> I'd
> >> suggest that DataFrames not use ~, and use ~
> >> for string concatenation.
> >>
>
>
