如何调整树状图(R)中x轴的大小?

问题描述：

对于大型数据集，我想在显示所有标签的树状图中调整x轴.例如，我在这里使用虹膜数据:

I would like to adjust the x-axis in a dendrogram where all the labels are seen, for large data sets. As example, I use iris data here:

    > iris.data=subset(iris,select=-Species)

    > d <- dist(iris.data, method="euclidean")

    > hc <- hclust(d, "ward")

    > plot(hc, hang=-1, main="Dendrogram of Ward's Method", label=iris$Species)

使用plot函数后，树状图将如下所示:

After the plot function is used, the dendrogram will be like this:

所以，我将如何调整x轴，以便所有物种都清晰可见.

So, how I'm going to adjust the x-axis so then all the species are all clear seen.

答

就像@RomanLuštrik所说: 您可以这样:

Like @Roman Luštrik said : You can do like this :

  png("plotdendogram.png",width=1600,height=800)

  par(cex=1,font=3)
  plot(hc, hang=-1, main="Dendrogram of Ward's Method", label=iris$Species)

  dev.off()

尽管字体较小，您仍可以查看物种名称. 希望这会有所帮助.

You will be able to view species' names, although in small font size. Hope this helps.

如何调整树状图(R)中x轴的大小?

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