how to color the world with two color(red and green)?

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xiaoping lv
xiaoping lv 2020-9-28
回答： KSSV 2020-9-28
i have the current account of every country. i want to draw a map below. the current account bigger than zero is color with green while the current account smaller than zero is colored with red. i use the world.shp to do this ,but i failed. Beside, some countries lack the data, will be color with gray。
mycode:
S = shaperead('World_Country.shp', 'UseGeoCoords',true);
maxdensity = max([S.CA]);
mindensity=min([S.CA]);
fall = flipud(autumn(numel(S)));
densityColors = makesymbolspec('Polygon', {'CA', ...
[mindensity maxdensity], 'FaceColor', fall});
geoshow(S, 'DisplayType', 'polygon', ...
'SymbolSpec', densityColors)
countries.shp file: link：https://pan.baidu.com/s/1FKVBRWr6WS4pEg18XiT_-A
pin：1111

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回答（1 个）

KSSV
KSSV 2020-9-28
Refer this link: https://in.mathworks.com/matlabcentral/answers/598378-how-to-plot-coast-and-fill-the-land-with-gray-without-m_map?s_tid=srchtitle
In the above you can specify your required color using a account as contiion.

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