How to plot correct colors in R maps library
<p>I am trying to plot specific colors for specific countries using R maps library. I can fill in the colors but they are not correctly associated with their respective countries. I wonder if someone could have a clue why?</p>

<p>My data frame is «filld» and has 3 columns: the first is the countries names, the second is just some numeric data, and the 3rd is the color:</p>

<pre><code>              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
</code></pre>

<p>This is the code I am using:</p>

<pre><code>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)
</code></pre>

<p>But this is the colors I am getting:
<a href="https://i.stack.imgur.com/jNVV0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jNVV0.png" alt="Worldmap with wrong colors"></a>
Australia should be filled in red, but is green; Spain should be filled in red, but is yellow; France should be filled yellow but it darkgreen;etc...
Some countries are ok though, e.g. the USA should be and is darkgreen.</p>

<p>Any comments will be appreciated. Thanks!</p>