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POR: Gradient plot on a shapefile
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copied!<p>I currently have a shapefile of the UK and have plot the population of species in different regions of the UK. So far I have just plotted 3 levels of species population and coloured them red=high, orange=med, green=low. But what I would like to do would be to have a gradient plot instead of being bounded by just 3 colours. So far I have a table called Count that has the regions as the column names and then the count of species for each region below. My lowest count being 0 and my highest being around 2500 and the regions in Count match with the regions in my shapefile. I have a function that determines what is high, med, low based on levels you input yourself </p> <pre><code> High<-colnames(Count)[which(Count>'input value here')] </code></pre> <p>and then these are plotted onto the shapefile like this:</p> <pre><code> plot(ukmap[(ukmap$Region %in% High),],col='red',add=T) </code></pre> <p>Unfortunately I can't really install any packages, I was thinking of using colorRamp, but I'm not really sure what to do?</p> <p>EDIT: my data looks something like this</p> <pre><code> Wales Midlands North Scotland South East South West 1 551 32 124 1 49 28 3 23 99 291 152 164 107 4 1 7 17 11 21 14 7 192 32 12 0 1 9 9 98 97 5 1 21 0 </code></pre> <p>and the first column is just a number that represents the species and currently I have a function that plots the count onto a UK shapefile but based on boundaries of high, med and low. The data above is not attached to my shapefile. I then loop through for each line (species) of my data set and plot a new map for each line (species).</p>

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