Don't doctest plot labelling

Author: jonniedie

src/plot_utils.jl

@@ -5,7 +5,7 @@
 Get string labels for for each index of a `ComponentVector`. Useful for automatic plot legend labelling.
 
 # Examples
-```jldoctest
+```
 julia> x = ComponentArray(a=5, b=[(a=(a=20,b=1), b=0), (a=(a=33,b=1), b=0)], c=(a=(a=2, b=[1,2]), b=[1. 2.; 5 6]))
 ComponentVector{Float64}(a = 5.0, b = [(a = (a = 20.0, b = 1.0), b = 0.0), (a = (a = 33.0, b = 1.0), b = 0.0)], c = (a = (a = 2.0, b = [1.0, 2.0]), b = [1.0 2.0; 5.0 6.0]))
 
@@ -46,11 +46,11 @@ _labels(x) = ""
 Convert labels made by `labels` function to an array of flat indices of a `ComponentVector`.
 
 # Examples
-```jldoctest
+```
 julia> x = ComponentArray(a=5, b=[(a=(a=20,b=1), b=0), (a=(a=33,b=1), b=0)], c=(a=(a=2, b=[1,2]), b=[1. 2.; 5 6]))
 ComponentVector{Float64}(a = 5.0, b = [(a = (a = 20.0, b = 1.0), b = 0.0), (a = (a = 33.0, b = 1.0), b = 0.0)], c = (a = (a = 2.0, b = [1.0, 2.0]), b = [1.0 2.0; 5.0 6.0]))
 
-julia> labels(x)
+julia> ComponentArrays.labels(x)
 14-element Vector{String}:
  "a"
  "b[1].a.a"
@@ -67,13 +67,13 @@ julia> labels(x)
  "c.b[1,2]"
  "c.b[2,2]"
 
-julia> label2index(x, "c.a")
+julia> ComponentArrays.label2index(x, "c.a")
 3-element Vector{Int64}:
   8
   9
  10
 
-julia> label2index(x, "b[1]")
+julia> ComponentArrays.label2index(x, "b[1]")
 3-element Vector{Int64}:
  2
  3