From fd17dceeccce0be29914a857267cdf483471fda7 Mon Sep 17 00:00:00 2001
From: Simon Christ <SimonChrist@gmx.de>
Date: Wed, 11 Mar 2020 12:11:10 +0100
Subject: [PATCH] handle unmatching vectors

---
 src/backends/pgfplotsx.jl | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/backends/pgfplotsx.jl b/src/backends/pgfplotsx.jl
index 1d8ad070..d2dd3c29 100644
--- a/src/backends/pgfplotsx.jl
+++ b/src/backends/pgfplotsx.jl
@@ -348,17 +348,20 @@ function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
                     # add to legend?
                     if sp[:legend] != :none && pgfx_should_add_to_legend(series)
                         leg_entry = if opt[:label] isa AVec
-                            opt[:label][i]
+                            get(opt[:label], i, "")
                         elseif opt[:label] isa AbstractString
-                            if i == 1 && opt[:label] != ""
+                            if i == 1
                                 opt[:label]
                             else
-                                push!(segment_plot.options, "forget plot" => nothing)
-                                continue
+                                ""
                             end
                         else
                             throw(ArgumentError("Malformed label. label = $(opt[:label])"))
                         end
+                        if leg_entry == ""
+                            push!(segment_plot.options, "forget plot" => nothing)
+                            continue
+                        end
                         leg_opt = PGFPlotsX.Options()
                         if ribbon !== nothing
                             pgfx_filllegend!(axis.contents[end - 3].options, opt)