如何在grid.arrange中动态创建图？ [英] How to create plots dynamically in grid.arrange in R?

问题描述

我有一个函数 get.single.plot ，它需要一个字符参数并返回一个 ggplot2 plot对象。我想建立一个 grid.arrange 对象，其中 n n 是（提到）字符参数的向量的大小。

I have a function get.single.plot, which takes one character argument and returns a ggplot2 plot object. I would like to build a grid.arrange object with n plots on it, where the n is the size of vector of (mentioned) character arguments.

例如，我喜欢这样的工作：

E.g., I woould like something like this to work:

character.argument.vector <- c("12", "1", "2")
grid.arrange(unlist(lapply(character.argument.vector, function(n) get.single.plot(n))),
         ncol = 1)

这样的东西不行 - 我收到以下信息：

Such thing does not work - I receive the following information:

Error in arrangeGrob(..., as.table = as.table, clip = clip, main = main,  : 
input must be grobs!

我应该怎么做？

推荐答案

使用gridExtra v> = 2.0，你可以只需将格列（或图）列表格式转换为grid.arrange，

With gridExtra v>=2.0 you can simply pass a list of grobs (or plots) to grid.arrange,

grid.arrange(grobs = lapply(...), ncol=1)

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