From 6ff4dce62a3a272ec2c0ac997b1bd279f8fd0905 Mon Sep 17 00:00:00 2001
From: "Michael K. Borregaard" <mkborregaard@snm.ku.dk>
Date: Mon, 18 Dec 2017 08:47:15 +0100
Subject: [PATCH] Don't add `abline!` if outside plot window

---
 src/recipes.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/recipes.jl b/src/recipes.jl
index 5eab486f..07ac0c1b 100644
--- a/src/recipes.jl
+++ b/src/recipes.jl
@@ -989,7 +989,7 @@ end
 function abline!(plt::Plot, a, b; kw...)
     xl, yl = xlims(plt), ylims(plt)
     x1, x2 = max(xl[1], (yl[1] - b)/a), min(xl[2], (yl[2] - b)/a)
-    plot!(plt, x -> b + a*x, x1, x2; kw...)
+    x2 > x1 && plot!(plt, x -> b + a*x, x1, x2; kw...)
 end
 
 abline!(args...; kw...) = abline!(current(), args...; kw...)