Fix for plotting a vector of (at least two) NaNs

src/utils.jl

@@ -82,7 +82,7 @@ function series_segments(series::Series, seriestype::Symbol = :path)
     args = RecipesPipeline.is3d(series) ? (x, y, z) : (x, y)
     nan_segments = collect(iter_segments(args...))
 
-    result = if has_attribute_segments(series)
+    segments = if has_attribute_segments(series)
         Iterators.flatten(map(nan_segments) do r
             if seriestype in (:scatter, :scatter3d)
                 (SeriesSegment(i:i, i) for i in r)
@@ -94,8 +94,14 @@ function series_segments(series::Series, seriestype::Symbol = :path)
         (SeriesSegment(r, 1) for r in nan_segments)
     end 
 
-    seg_range = UnitRange(minimum(first(seg.range) for seg in result),
-                                maximum(last(seg.range) for seg in result))
+    warn_on_attr_dim_mismatch(series, x, y, z, segments)
+    return segments
+end
+
+function warn_on_attr_dim_mismatch(series, x, y, z, segments)
+    isempty(segments) && return
+    seg_range = UnitRange(minimum(first(seg.range) for seg in segments),
+                          maximum(last(seg.range) for seg in segments))
     for attr in _segmenting_vector_attributes
         v = get(series, attr, nothing)
         if v isa AVec && eachindex(v) != seg_range
@@ -111,8 +117,6 @@ function series_segments(series::Series, seriestype::Symbol = :path)
             end
         end
     end
-
-    return result
 end
 
 # helpers to figure out if there are NaN values in a list of array types
@@ -174,14 +178,6 @@ makevec(v::T) where {T} = T[v]
 maketuple(x::Real)                     = (x,x)
 maketuple(x::Tuple{T,S}) where {T,S} = x
 
-for i in 2:4
-    @eval begin
-        RecipesPipeline.unzip(
-            v::Union{AVec{<:Tuple{Vararg{T,$i} where T}}, AVec{<:GeometryBasics.Point{$i}}},
-        ) = $(Expr(:tuple, (:([t[$j] for t in v]) for j=1:i)...))
-    end
-end
-
 RecipesPipeline.unzip(
     ::Union{AVec{<:GeometryBasics.Point{N}}, AVec{<:Tuple{Vararg{T,N} where T}}}
 ) where N = error("$N-dimensional unzip not implemented.")

test/runtests.jl

@@ -172,6 +172,8 @@ end
     @testset "Plot" begin
         plots = [histogram([1, 0, 0, 0, 0, 0]),
                  plot([missing]),
+                 plot([missing, missing]),
+                 plot(fill(missing, 10)),
                  plot([missing; 1:4]),
                  plot([fill(missing, 10); 1:4]),
                  plot([1 1; 1 missing]),