When using the pdf() function in R for saving a plot in an external file, we can specify width and/or height to adjust the size of the plot. However, there are situations when we obtain multiple plot (say using par(mfrow=c(2,4))). In this situation, it's kind of difficult to determine what is the best width and height for the PDF file in order to have all plots displayed properly. Is there a way to let R automatically "fit the plots" in the PDF file? I searched the arguments in pdf() and tried some, but the results are not satisfactory. Thank you very much!
当使用R中的pdf（）函数在外部文件中保存绘图时，我们可以指定宽度和/或高度来调整绘图的大小。但是，有些情况下我们获得多个图（比如使用par（mfrow = c（2,4）））。在这种情况下，要确定PDF文件的最佳宽度和高度是多么困难，以便正确显示所有图形。有没有办法让R自动“适应PDF文件中的图”？我搜索了pdf（）中的参数并尝试了一些，但结果并不令人满意。非常感谢你！
1 个解决方案
#1
2
How about something using ggplot?
用ggplot怎么样？
require(ggplot2)
# Bogus data
x <- rnorm(10000)
y <- as.factor(round(rnorm(10000, mean=10, sd=2), 0))
df <- data.frame(vals=x, factors=y)
myplot <- ggplot(data=df, aes(x=vals)) +
geom_density() +
facet_wrap(~ factors)
ggsave(filename="~/foo.pdf", plot=myplot, width=8, height=10, units="in")
EDIT: Should you need to print over multiple pages, see this question.
编辑：如果您需要打印多个页面，请参阅此问题。
#1
2
How about something using ggplot?
用ggplot怎么样？
require(ggplot2)
# Bogus data
x <- rnorm(10000)
y <- as.factor(round(rnorm(10000, mean=10, sd=2), 0))
df <- data.frame(vals=x, factors=y)
myplot <- ggplot(data=df, aes(x=vals)) +
geom_density() +
facet_wrap(~ factors)
ggsave(filename="~/foo.pdf", plot=myplot, width=8, height=10, units="in")
EDIT: Should you need to print over multiple pages, see this question.
编辑：如果您需要打印多个页面，请参阅此问题。