r - 图例中的线宽？

Question

我想改变图例中线条的宽度。目前我有:

legend(-0.145, 25, c("(Gaussian) Kernel density","fitted normal distribution"),lwd=1.8, cex=0.8, 
   col=c("black","black"), lty=1:2)

lwd 似乎改变了文本，但没有改变线条和虚线的宽度，我该怎么做？

Answer 1

我认为你错了，lwd 设置了图例中的线宽:

比较这个(上图):

plot(rnorm(100)*13)
legend(-0.145, 25, c("(Gaussian) Kernel density","fitted normal distribution"),lwd=0.1, cex=0.8, 
   col=c("black","black"), lty=1:2)

有了这个( basemap ):

plot(rnorm(100)*13)
legend(-0.145, 25, c("(Gaussian) Kernel density","fitted normal distribution"),lwd=3, cex=0.8, 
   col=c("black","black"), lty=1:2)