[R-sig-Geo] Linux or OS X on Macbook Pro Retina?

[Hadley Wickham]

>  Where does a Maccer get the 'brew' command from? Reading these docs:
>
> http://mxcl.github.io/homebrew/
>
> seems to imply you first need Ruby. Is that installed on every Mac?

Yes, you just run:

ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)"

all macs have ruby on them already.

> does that brew command require an rgdal 'formula' somewhere? I cant
> find one here:
>
> https://github.com/mxcl/homebrew/blob/master/Library/Formula

You want rgdal from brew, and then rgdal from CRAN.

> or is it a case of installing R from homebrew and then 'gdal' for the
> libraries and then the rgdal package via install.packages from source?
>
> 1. install Ruby
> 2. install homebrew
> 3. start a Terminal
> 3.1  brew install r
> 3.2  brew install gdal
> 4. run R
> 4.1 install.packages("rgdal",type="source")

Yes, except I usually just install the binary R distro from CRAN (and
3 needs to come before 1).

Hadley

--
Chief Scientist, RStudio
http://had.co.nz/