stack in MATLAB = relative in plotly

Author: Harsh Purwar

plotly/plotlyfig_aux/handlegraphics/updateBar.m

@@ -89,7 +89,7 @@
     case 'grouped'
         obj.layout.barmode = 'group';
     case 'stacked'
-        obj.layout.barmode = 'stack';
+        obj.layout.barmode = 'relative';
 end
 
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