I'm a new users of spatial analyses packages in R.I have created a SpatialPolygonsDataFrame which contains a number of rectangular polygons that i named "Square1" to "Square64".Until now there is no problem i can plot these polygons on a map. The problem is that i have a data.frame that contains the number of vesels in each "Square_i" (i=1 to 64) polygon, but i don't know how to relate each polygons in my SpatialPolygonsDataFrame object to the data.Can anyone help me please
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