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r - 如何在 R map 库中绘制正确的颜色

转载 作者:行者123 更新时间:2023-12-01 11:24:29 25 4
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我正在尝试使用 R map 库为特定国家/地区绘制特定颜色。我可以填写颜色,但它们没有正确地与各自的国家相关联。我想知道是否有人知道为什么?

我的数据框是 «filld» 并且有 3 列:第一列是国家名称,第二列只是一些数字数据,第三列是颜色:

              countries toplot     color
1 Argentina -1 red
2 Armenia -1 red
3 Australia -1 red
4 Bahrain -1 red
5 Botswana -1 red
6 Belgium -1 red
7 Bulgaria -1 red
8 Canada -1 red
9 Chile -1 red
10 Taiwan -1 red
11 Croatia -1 red
12 Czech Republic -1 red
13 UK:Great Britain -1 red
14 Egypt -1 red
15 Denmark -1 red
16 Finland 0 yellow
17 France 0 yellow
18 Georgia 0 yellow
19 Germany 0 yellow
20 China:Hong Kong 0 yellow
21 Hungary 0 yellow
22 Indonesia 0 yellow
23 Iran 0 yellow
24 Ireland 0 yellow
25 Israel 0 yellow
26 Italy 0 yellow
27 Japan 0 yellow
28 Jordan 0 yellow
29 Kazakhstan 1 darkgreen
30 Korea 1 darkgreen
31 Kuwait 1 darkgreen
32 Lebanon 1 darkgreen
33 Lithuania 1 darkgreen
34 Malaysia 1 darkgreen
35 Malta 1 darkgreen
36 Morocco 1 darkgreen
37 Netherlands 1 darkgreen
38 New Zealand 1 darkgreen
39 UK:Northern Ireland 1 darkgreen
40 Norway 1 darkgreen
41 Oman 1 darkgreen
42 Palestine 1 darkgreen
43 Poland 1 darkgreen
44 Portugal 1 darkgreen
45 Qatar 1 darkgreen
46 Russia 1 darkgreen
47 Saudi Arabia 0 yellow
48 Serbia 0 yellow
49 Singapore 0 yellow
50 Slovak Republic 0 yellow
51 Slovenia -1 red
52 South Africa -1 red
53 Spain -1 red
54 Sweden -1 red
55 Thailand 1 darkgreen
56 Turkey 1 darkgreen
57 United Arab Emirates 0 yellow
58 USA 1 darkgreen

这是我使用的代码:

library(maps)       # Provides functions that let us plot the maps
library(mapdata) # Contains the hi-resolution points that mark out the countries.

map('world', filld$countries, fill=T, border="darkgray", col=filld$color)
map('world', col="darkgray", add=T)

但这是我得到的颜色: Worldmap with wrong colors澳大利亚应该填红色,但是是绿色;西类牙应该是红色的,但是是黄色的;法国应该是黄色的,但它是深绿色的;等等……不过有些国家还可以,例如美国应该是深绿色。

任何意见将不胜感激。谢谢!

最佳答案

我不完全确定是什么导致了这个问题,但是先绘制世界然后用颜色填充就可以了。

map('world', col='darkgray')
for (color in unique(filld$color)) {
map('world', regions=filld$countries[which(filld$color==color)], fill=T, border="darkgray", col=color,add=T)
}

enter image description here

关于r - 如何在 R map 库中绘制正确的颜色,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38901964/

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