如何省略 R 树图中的标签? [英] How do I omit labels in the R treemap?

问题描述

我一直在使用 R 树图包我有一个 2 层深的树状图.我想要打印第二级标签而不是第一级标签.

I've been using the R treemap package and I have a treemap that's 2 levels deep. I want the second level labels to be printed but not the first.

使用手册页中的示例:

tmPlot(GNI2010,
       index=c("continent", "iso3"),
       vSize="population",
       vColor="GNI",
       type="value")

树形图示例 http://www.eecs.tufts.edu/~rveroy/stuff/GNI2010-treemap.png

我想去掉大陆标签，但保留iso3标签.如果文件中有但没有找到，我提前道歉.

I want to get rid of the continent labels, but retain the iso3 labels. I apologize in advance if it is in the documents but haven't found it.

推荐答案

要删除大洲标签，您可以事后编辑图表.该图生成一个网格对象.此网格对象的最后两个元素似乎是国家/地区标签.因此，您可以通过这种方式删除它们:

To remove the continent labels, you can post hoc edit the graph. The graph produces a grid object. The last two elements of this grid object seem to be the country labels. Hence you can remove them this way:

lapply(tail(grid.ls(print=FALSE)$name, 2), grid.remove)

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