放大 R 中的图

Question

我有一个名为“file1”的文件，以下是它的绘图和编码。问题是我需要显示并关注这些图的差异，但我不确定如何（并且我需要将其更改为灰度......所以甚至无法注意到差异！）。任何建议将不胜感激。

cl<-rainbow(20)
labels1 <- c("t=1","t=2","t=3","t=4","t=5", "t=6")
title<-"Time"

b1<-ggplot(file1, aes(x=f11,colour=time, alpha=time, size=time))+
  geom_line(aes(y = S1))+scale_color_manual(values =c("t1"="red","t2"="magenta","t3"="coral4","t4"=cl[8],"t5"="blue","t6"="darkolivegreen"),
                     labels=labels1 ,name="Time")+
  scale_alpha_manual(values=c(1, 1, 1, 1, 1, 1),labels=labels1)+
  scale_size_manual(values = c(.6, .61, .61, .61, .61, .61),labels=labels1)+
  guides(colour = guide_legend(title=title),
         alpha = guide_legend(title=title),
         size = guide_legend(title=title))+
  labs(title="Column 1")+ theme_bw()+theme(plot.title=element_text(size=12,hjust=0.5,face="bold"))+ 
  theme(aspect.ratio = 1)+ theme(panel.grid.major = element_blank(), panel.grid.minor = element_blank())+
  xlab( "growth")+ylab( "nutrient")+
    scale_x_continuous(breaks = seq(0, 0.5, by=0.10), limits=c(0,0.5))+
  scale_y_continuous(trans='log10')

b1