diff --git a/src/series.jl b/src/series.jl
index f3499e22..246764d5 100644
--- a/src/series.jl
+++ b/src/series.jl
@@ -519,16 +519,31 @@ split_kw(key, val::Tuple, indices) = Tuple(split_kw(key, v, indices) for v in va
 # split the group into 1 series per group, and set the label and idxfilter for each
 @recipe function f(groupby::GroupBy, args...)
     lengthGroup = maximum(union(groupby.groupIds...))
-    for (i,glab) in enumerate(groupby.groupLabels)
-        @series begin
-            label     --> string(glab)
-            idxfilter --> groupby.groupIds[i]
-            for (key,val) in d
-                if splittable_kw(key, val, lengthGroup)
-                    :($key) := split_kw(key, val, groupby.groupIds[i])
+    if !(RecipesBase.group_as_matrix(args[1]))
+        for (i,glab) in enumerate(groupby.groupLabels)
+            @series begin
+                label     --> string(glab)
+                idxfilter --> groupby.groupIds[i]
+                for (key,val) in d
+                    if splittable_kw(key, val, lengthGroup)
+                        :($key) := split_kw(key, val, groupby.groupIds[i])
+                    end
                 end
+                args
             end
-            args
         end
+    else
+        g = args[1]
+        x, y = g.args
+        x_u = unique(x)
+        y_mat = Array{eltype(y)}(length(x_u), length(groupby.groupLabels))
+        for i in 1:length(groupby.groupLabels)
+            xi = x[groupby.groupIds[i]]
+            yi = y[groupby.groupIds[i]]
+            x2y = Dict(zip(xi,yi))
+            y_mat[:, i] = [get(x2y, s, NaN) for s in x_u]
+        end
+        label --> reshape(groupby.groupLabels, 1, :)
+        typeof(g)((x_u, y_mat))
     end
 end