I haven't found anything about the legend when the map contains icons external R (in png), is't possible to use the legend function or another function in R.

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    I don't know much about using R but this link might help? – Joseph Oct 29 '14 at 10:50
  • @Joseph I managed to put my pictures on my external map thanks to the disscussion gis.stackexchange.com/questions/118286/…, now I want a method to my legend with icons – zina_GIS Oct 29 '14 at 11:16
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    I could only find a related topic. If this doesn't help then hopefully others will advise. – Joseph Oct 29 '14 at 11:26

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