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關於choropleth地圖的另一個問題即將到來。起初讓我們做一些數據。choroplethr地圖在R
`a<-c(4.1,2.5,0.4,6.4,1.4,1.8,3.8,1.3,2.3,8.4,5.2,1.9,0.8,1.5,2.1,1.2,3.8,1.4,3.1,0.8,4.0,1.3,4.8,2.6,2.8,2.3,3.1,2.5)
target<-c("austria","belgium","bulgaria","switzerland","cyprus","czech republic","denmark",
"estonia","spain","finland","france","greece","croatia","hungary","ireland","italy",
"lithuania","luxembourg","latvia","norway","poland","portugal","romania","sweden",
"slovenia","slovakia","turkey","united kingdom")
datas<-data.frame(region=target,value=a)
datas$region<-as.character(datas$region)
install.packages("choroplethr")
install.packages("choroplethrMaps")
library(choroplethr)
library(choroplethrMaps)
data(country.map)
data(country.regions)
gg <- country_choropleth(datas,legend="%",num_colors=1,zoom=target)
gg <- gg + xlim(-31.266001, 39.869301)
gg <- gg + ylim(27.636311, 81.008797)
gg <- gg + coord_map("lambert", lat0=27.636311, lat1=81.008797)
gg`
所以輸出
,我不能調整是離開一個國家無色的事情。如果我將一個國家的價值設定爲0,那麼這會大幅改變其他人的顏色比例。我的目標是在地圖上添加我沒有數據的國家/地區,並將其顏色設置爲灰色以使地圖更加逼真,並指出我擁有數據的國家/地區。
謝謝你。我已經試圖設置我想要的值,但沒有scale_fill_continous它毀了結果,因爲它添加了黑色的色階。美麗 –
還有一個問題剛剛出現。有什麼方法可以用黑色繪畫讓我們說每個國家的周邊,以便讓它們更加可區分? –
你可以問一個單獨的問題嗎?就像「如何改變可調度國家地圖的邊界?」 – Ari