# ggplot2 绘制某国政府网站中的百分比数据 LOWESS 图
library(scales)
library(ggplot2)
library(patchwork)
data(gov.cn.pct, package = "MSG")
p1 = ggplot(gov.cn.pct) +
geom_line(aes(percentage,count)) +
labs(x = "百分比", y = "频数")
p2 = p1 + scale_x_continuous(breaks = seq(10, 11, 0.2), limits = c(9.9, 11.1))
p3 = ggplot(gov.cn.pct,
aes(percentage, count, group = round0, color = round0)) +
geom_point(size = 0.1, alpha = 0.3) +
geom_smooth(aes(group = round0)) +
scale_y_log10(
breaks = 10^(2:6),
labels = trans_format("log10", math_format(10^.x)),
minor_breaks = as.vector(sapply(2:10, function(x) x * 10^(2:6))))+
labs(x = "百分比", y = "频数", color = "舍入到个位") +
theme(legend.position = c(0.8, 0.8),
legend.background = element_blank())
p4 = ggplot(gov.cn.pct, aes(percentage, count, color = round1)) +
geom_point(size = 0.1, alpha = 0.3) +
geom_smooth(aes(group = round1)) +
scale_y_log10(
breaks = 10^(2:6),
labels = trans_format("log10", math_format(10^.x)),
minor_breaks = as.vector(sapply(2:10, function(x) x * 10^(2:6))))+
labs(x = "百分比", y = "频数", color = "舍入到十分位") +
theme(legend.position = c(0.8, 0.8),
legend.background = element_blank())
print((p1 | p2) / (p3 | p4))
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