世界合唱图
世界合唱图
提问于 2022-10-13 19:24:19
你能帮我画出几个国家的计数值(来自国家向量)吗？其他国家应该是灰色还是白色。
事先非常感谢！
library(ggplot2)
library(see)
library(maps)
# vector of countries
countries <- c("Mexico", "USA", "Germany", "France",
"Spain", "China", "India", "Australia")
# vector of counts ---
count_response <- c(80, 200, 180, 175, 140, 250, 230, 240)
worldMap <- map_data("world")
ggplot(data = worldMap,
aes(x = long,
y = lat,
group = group)) +
geom_polygon(colour = "black",
fill = "gold") +
labs(x = "Longitude",
y = "Latitude") +
theme_lucid()回答 1
Stack Overflow用户
发布于 2022-10-13 21:21:11
您需要将数据加入到世界地图数据框架中。，这将允许您将填充颜色映射到count_response。
worldMap <- map_data("world")
df <- data.frame(countries, count_response)
ggplot(data = dplyr::left_join(worldMap, df, by = c(region = "countries")),
aes(x = long,
y = lat,
group = group,
fill = count_response)) +
geom_polygon(color = "black") +
labs(x = "Longitude",
y = "Latitude") +
theme_lucid(base_size = 16) +
scale_fill_gradient(low = "red4", high = "yellow")
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原文链接：
https://stackoverflow.com/questions/74060833
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