RosaR
Ruby/OSA to Gnu-R interface, useful to plot and analyze data from within ruby. It relies on AppleScript, so only works on Apple OS X (Snow Leopard tested).
Installation
RosaR gem has moved to Gemcutter. In order to install you have two alternative choices:
-
Simply add the Gemcutter repo to your rubygem source list:
gem sources -a http://gemcutter.org -
Install gemcutter:
sudo gem install gemcutter sudo gem tumble
Next, simply install the gem:
sudo gem install rosar
Example
require '../lib/rosar'
r = ROSAR.instance
df = {
:x => (0..4).to_a,
:y => [7,2,5.5,8,9,10]
}
cols = %w(red green blue darkred darkgreen darkblue)
r.transfer :p=>(0...100).to_a
r.plot :x=>:p, :y=>"p^2", :typ=>"'l'"
2.upto 7 do |i|
r.lines :x=>:p, :y=>"#{i}*p^2", :col=>"'#{cols[i-2]}'"
end
sleep(2)
r.data_frame :df, df
r.attach :df
r.plot :x=>:x, :y=>"y/2", :typ=>"'b'", :col=>"'darkred'", :xlab=>"'Time (s)'"
r.grid
r.abline :h=>[2.5,3.5]
r.abline "a=0, b=1"
r.detach :df