如何在R中使用layout()函数? [英] How to use layout() function in R?

问题描述

我只是举了一个例子，该例子生成了四个与layout函数结合的图.但是，我无法弄清楚layout()内的矩阵如何连接到这些图的布局.

I just took an example which produces four plots combined with the layout function. However, I cannot figure out how the matrix inside layout() connects to the layout of these plots.

layout(matrix(c(1, 1, 1,
                2, 3, 4,
                2, 3, 4), nr=3, byrow=T))
hist(rnorm(25), col="VioletRed")
hist(rnorm(25), col="VioletRed")
hist(rnorm(25), col="VioletRed") 
hist(rnorm(25), col="VioletRed")

推荐答案

在您的示例中，图形设备被划分为3 x 3单元格，列/行的宽度/高度相等(因为这是默认设置)不提供widths和heights参数时的行为).

For your example, the graphics device is split into a 3 x 3-cell grid, with columns/rows having equal width/height (since that is the default behaviour when you don't provide widths and heights arguments).

在调用layout之后，第一个后续绘图将填充矩阵的值为1的单元格(即前三个单元格).第二个图将填充矩阵值为2的单元格(左下和中左单元格)，依此类推.

After calling layout, the first subsequent plot will fill the cells for which the matrix has value 1 (i.e., the top three cells). The second plot will fill the cells for which the matrix has value 2 (bottom-left and middle-left cells), and so on.

要获取随后布局的预览，可以使用layout.show:

To get a preview of the ensuing layout, you can use layout.show:

layout(matrix(c(1, 1, 1,
                2, 3, 4,
                2, 3, 4), nrow=3, byrow=TRUE))
layout.show(n=4)

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