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# 彩蛋 右上角的封面是这段代码画的位图
library(ggplot2)
<- read.csv('https://raw.githubusercontent.com/ggvisPro/data/refs/heads/main/img_df2.csv')
df <- ggplot(df, aes(x = x, y = y, color = color)) +
p geom_point() +
scale_colour_identity() + #控制颜色映射
theme_void() #删除坐标轴
# p # 显示图形