我正在尝试使用我在本论坛和其他地方找到的命令来覆盖我的符号大小 aes。我可以让 Alpha 覆盖起作用,但不能让大小起作用。
f1<-ggplot(data=d, aes(x=rpos, y=count, group=id,color=id)) +
geom_point(alpha=0.05, size=0.5) +
scale_fill_manual(values=c("blue", "red")) +
scale_colour_manual(values=c("blue", "red")) +
xlab("Chromosome 1") +
scale_y_continuous(name="Relative coverage",limits=c(-0.5,1.5)) +
guides(colour =guide_legend(override.aes=list(size=5))) +
guides(colour = guide_legend(override.aes = list(alpha = 1))) +
theme_bw()
optns <- theme (
plot.title = element_text(face="bold", size=14),
axis.title.x = element_text(size=12),
axis.title.y = element_text(size=12, angle=90),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank(),
legend.position = c(.97,.85),
legend.text = element_text(size=10),
legend.key.size = unit(1, "lines"),
legend.key = element_blank(),
legend.justification = 'right'
)
f1 + ggtitle ("Coverage of Chromosome 1") +
optns + ggsave("Rel.mergedDataChr1.pdf", width = 20, height = 5, dpi = 100)