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R语言midwest数据集可视化
2022-06-22 19:17:00 【Mrrunsen】
ggplot2 包中的 midwest 数据集包含了美国中西部的一些县的统计数据,如面积(单位:平方英里)。
midwest_sub <- midwest %>%
filter(state %in% c("OH", "WI"))
p <- ggplot(data=midwest_sub,
mapping = aes(x = area, fill = state))
p + geom_histogram(bins = 10)

面积较小的州是 OH 州,面积较大是 WI 州
ggplot(data = midwest,
mapping = aes(
x = area,
color = state,
fill = state)) + geom_density(alpha = 0.5)

IN 与 MI 州各县的面积偏小。WI 州各县的面积较大。
ggplot(data = midwest,mapping = aes(y = poptotal,fill = state)) + geom_boxplot()+ ylim(0,100000)
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