Merge pull request #2258 from daschw/function_xlims

pass correct xlims to adapted_grid

src/series.jl

@@ -379,13 +379,17 @@ end
 
 @recipe function f(f::FuncOrFuncs{F}) where F<:Function
     plt = plotattributes[:plot_object]
-    xmin, xmax = try
+    xmin, xmax = if haskey(plotattributes, :xlims)
+        plotattributes[:xlims]
+    else
+        try
             axis_limits(plt[1], :x)
         catch
             xinv = invscalefunc(get(plotattributes, :xscale, :identity))
             xm = tryrange(f, xinv.([-5,-1,0,0.01]))
             xm, tryrange(f, filter(x->x>xm, xinv.([5,1,0.99, 0, -0.01])))
         end
+    end
 
     f, xmin, xmax
 end