Assignment of r-base plot to a value

Question

I've a problem with saving a r-base plot to an object. I want to assign whole plot which in fact consists of two plots merged by layout() function into a variable and then merge this plot with other by ggarrange() function. The recordPlot() function does not work cause I receive an error:

## Warning: Package `gridGraphics` is required to handle base-R plots.
## Substituting empty plot.

## Warning: Package `gridGraphics` is required to handle base-R plots.
## Substituting empty plot.

Here's the plot that I want to save:

layout(matrix(c(1, 2), 2, 1))
  hist(X1209_HCC1806_cv$Absorbance)
  boxplot(X1209_HCC1806_cv$Absorbance, horizontal = TRUE)

How does the gridGraphics package work? And how can I assign my plot to a variable in order to use it in ggarrange()?

Answer 1

Claus is exactly right. You just need to install gridGraphics with install.packages("gridGraphics"). Your code worked perfectly for me.