使用 layout() 进行绘图的 R 代码在逐行执行时有效,但在包含在函数中时无效

R code for plotting using layout() works when executed line by line but not when wrapped up in a function

我正在使用 xts 包。

library(xts)

以下工作完全正常:

mydata = xts(rnorm(200), order.by = Sys.Date() - 1:200)
layout(matrix(c(1,1,2,3), 2, 2, byrow = TRUE),
         widths=c(1,1), heights=c(1,2))
plot(mydata, main = 'mydata Time Series')
acf(mydata, main = 'mydata acf', lag = 10)
pacf(mydata, main = 'mydata pacf', lag = 10)

但是当我使用完全相同的东西作为函数时,绘图显示不佳

mydata = xts(rnorm(200), order.by = Sys.Date() - 1:200)

return_plot <- function(mydata, lag = 10){
  layout(matrix(c(1,1,2,3), 2, 2, byrow = TRUE),
         widths=c(1,1), heights=c(1,2))
  plot(mydata, main = 'mydata Time Series')
  acf(mydata, main = 'mydata acf', lag = lag )
  pacf(mydata, main = 'mydata pacf', lag = lag)
}

return_plot(mydata)

知道为什么会这样吗?

在你的函数中使用 print(plot(mydata, main = 'mydata Time Series'))