如何在R中使用tableGrob()将ggparagraph()文本对齐到表格底部

Question

我想要实现的目标

我正在尝试在ggparagraph()中实现边距，但是我找不到任何可以帮助我的设置。我尝试在ggarrange()中将两个宽度设置为相同，但这并没有起作用，而且这是一种变通方法。现在，当我从ggarrange()输出中导出PDF时，文本的长度与PDF页面的宽度一样。我不想改变PDF页面的宽度。

代码

这里是一些示例代码:

text <- paste("iris data set gives the measurements in cm",
              "of the variables sepal length and width",
              "and petal length and width, respectively,",
              "for 50 flowers from each of 3 species of iris.",
              "The species are Iris setosa, versicolor, and virginica.", sep = " ")
text.p <- ggparagraph(text = text, face = "italic", size = 11, color = "black")
stable <- desc_statby(iris, measure.var = "Sepal.Length",
                      grps = "Species")
stable <- stable[, c("Species", "length", "mean", "sd")]
stable.p <- tableGrob(stable, rows = NULL, 
                        theme = ttheme("mOrange"))

ggarrange(stable.p, text.p, 
          ncol = 1, nrow = 2,
          heights = c(1, 0.5))

我稍加更改了这个来源的代码以适应我的需求。

提前感谢你！

- PLY

Answer 1

你可以使用theme(plot.margin = )。你可以修改调用units()的数字，以获得你感兴趣的边距。请注意，t、r、b和l分别代表顶部、右侧、底部和左侧。

library(gridExtra)
library(ggpubr)
text <- paste("iris data set gives the measurements in cm",
              "of the variables sepal length and width",
              "and petal length and width, respectively,",
              "for 50 flowers from each of 3 species of iris.",
              "The species are Iris setosa, versicolor, and virginica.", sep = " ")

text.p <- ggparagraph(text = text, face = "italic", size = 11, color = "black") +
            theme(plot.margin = unit(c(t = 0, r = 12, b = 3, l = 12),"lines"))

stable <- desc_statby(iris, measure.var = "Sepal.Length",
                      grps = "Species")
stable <- stable[, c("Species", "length", "mean", "sd")]
stable.p <- tableGrob(stable, rows = NULL, 
                      theme = ttheme("mOrange"))

ggarrange(stable.p, text.p, ncol = 1, nrow = 2, heights = c(1, 0.5))

- Ian Campbell