保存到文件后，情节被切断

Question

我的无花果在情节之外有一个很大的传说。6 行长描述 当我保存它时，图例不显示。我调整了标准，但它仍然不起作用。

legend("topright", inset=c(-0.6,0),xpd=TRUE,cex=0.8,
+legend=c("A_all peaks","B_ from all peaks","C_from all peaks","A_from unique peaks",
+"B_from unique peaks","C_from unique peaks",
+"A_from overlap peaks","B_from overlap peaks","C_from overlap peaks"),
+col=c("green","red","blue","lightgreen","pink","lightblue","darkgreen","darkred","steelblue"),
+pch=c(20,20,20,20,20,20,20,20,20),bty="n")

> par()$oma
[1] 2 2 2 2 
> par()$mar
[1] 5.1 4.1 4.1 8.0

当以长宽度（尝试 800,1000 像素）保存时，没有图例显示。但是当作为短宽度（）时，部分图例显示。这真的让我很困惑。第一张图是 500*333，第二张图是 500*800。

Answer 1

不知道你如何将绘图保存到文件中，但我通常的例程是通过通常的方式在 R 中制作一个漂亮的绘图：

plot(blah,blah,blah)
legend(blah,blah,blah)

然后，一旦我对 R 控制台的图形外观感到满意，我就会使用pdf()它的表兄弟之一（jpeg()、tiff()等）将其保存到文件中，确保设置宽度和高度参数，如下所示：

# set up plotting device
pdf( {{FileName}}, 
   width = par('din')[1],
   height = par('din')[2])

plot(blah,blah,blah)
legend(blah,blah,blah)

# disconnect the plotting device
dev.off()