using Gadfly L=Layer[] push!(L,layer(x=1:10,y=rand(10),Geom.line)[]) push!(L,layer(x=1:10,y=rand(10),Geom.line)[]) push!(L,layer(x=1:10,y=rand(10),Geom.line)[]) plot(L)
Only awkward thing is the empty square bracket for some reason is needed.... Styling colours using Themes (see gadfly documentation) cheers