plot - R save table as image

Question

I would like to export a data frame as a (png) image. I've tried with this code, but the table get clipped vertically.

library(ggplot2)
library(gridExtra)

df <- data.frame(a=1:30, b=1:30)

png("test.png")
p<-tableGrob(df)
grid.arrange(p)
dev.off()

Is there a way to avoid this behaviour without having to set manually the size of the image?

Answer 1

You can change this behavior by specifying a height and width.

png("test.png", height=1000, width=200)
p<-tableGrob(df)
grid.arrange(p)
dev.off()

Anyway, it is usually not very helpful to save tables as pictures.