How to define color of country by a vector?
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Basically, I have a vector with 31 value, and each value represent a country in europe. These value are between 1 and -1.
A colormap is made, which tells you, if the value is between 0.2 and 1 then color corresponding color to these values are red and if -0.2 to -1 the related color to these values are blue and the color for between values are green.
Now how can i use this colormap to make plot of europe map. where fx if germany has 0.3 as value then color of this country shall be red or if spain has -0.8 as value then spain color need be blue?