ggplot(d,aes(x, y, colour = group1)) +
#基本函数:设定的是图的x轴,y轴,“美学特征”。...expand=c(0,0) limits = c(0,7) ,
breaks=(seq(0,7,by = 1)))+
#scale_y_continuous(y轴标题...,设置坐标轴原点,y轴范围,Y轴刻度间隔)
ggtitle("R") +
#图片主标题
theme_bw() +
#设置图片背景...;theme_bw()为传统的白色背景
theme(axis.text.x = element_text(angle = 45, hjust = 1))+
#X坐标轴刻度标签属性
theme(...plot.margin = unit(c(0.5,0.5,0.5,0.5), "cm"))
#调整绘图边距
?