title: Julia dies on creation of contour plot
body: <p>I want to make a contour plot of the loss space for a rather simple regression. Whenever I go to plot the space my session dies. Is there something that I'm doing wrong or do I need to trouble shoot installation? (just installed a couple days ago but haven't used Julia before)</p>
  <pre><code>using Plots, DataFrames, StatsPlots, Statistics, LinearAlgebra
  
  f(t) = t.^2
  c(θ₁, θ₂) = sum(f(t)-θ₁*t-θ₂*t.^2)
  
  t = LinRange(0,1,20) |&gt; collect
  θ₁ = LinRange(-3,2,100) |&gt; collect
  θ₂ = LinRange(-1,3.5,100)|&gt; collect
  
  X = [t t.^2]
  θ = [θ₁ θ₂]
  
  yhats = X * transpose(θ)
  ytrue = t.^2
  
  e = yhats .- ytrue
  tse = sum(e.^2, dims=1)
  
  contour(θ[:,1],θ[:,2], tse)
  </code></pre>