Plots library example not working: @gif not defined

[Uwe Fechner]

Hello,

I am trying to fun the following example from 
http://plots.readthedocs.org/en/latest/

using Plots
pyplot(size=(300,300))

# initialize the attractor
n = 3000
dt = 0.02
σ, ρ, β = 10., 28., 8/3
x, y, z = 1., 1., 1.
X, Y, Z = [x], [y], [z]

# build an animated gif, saving every 10th frame
@gif for i=1:n
    dx = σ*(y - x);      x += dt * dx; push!(X,x)
    dy = x*(ρ - z) - y;  y += dt * dy; push!(Y,y)
    dz = x*y - β*z;      z += dt * dz; push!(Z,z)
    plot3d(X,Y,Z)
end every 10

I get the error message:

ERROR: LoadError: UndefVarError: @gif not defined

Any idea, where @gif should be defined?

Best regards:

Uwe

[Tom Breloff]

I should tag a new version. Pkg.checkout("Plots") should do the trick. 

[Uwe Fechner]

Well, no this error went away, but the effect is nevertheless problematic:

It launches PyPlot, and then opens hundreds of windows until the computer
stalls.

Any idea?

[Tom Breloff]

Just a quick warning... That example is not very performant, as it creates a new figure for every iteration. I need to add push/append for 3D data to allow adding points to the same figure. 

[Tom Breloff]

FYI: If you check out the dev branch (Pkg.checkout("Plots","dev")) and install GR (Pkg.add("GR")), then this example runs much better with the GR backend.  (disclaimer: GR support is still a work in progress... thanks to Josef Heinen for the development effort.)