R: Save a data.table as an image with Title

Question

A follow-up question to this: R save table as image

Is there any way to add Custom Titles and Headings to images generated by the following code?

library(ggplot2)
library(gridExtra)
df <- data.table(a=1:10, b=11:20,c=21:30, d=31:40)
png("test.png")
p<-tableGrob(df)
grid.arrange(p)
dev.off()

The above code gives me the following output:

I want to add titles to the image and save them as files on my disk, so that I can use them in other documents and presentations.

Expecting something like this:

Or if there's a smarter way to do it in R, it would be very helpful. Again, all I am trying to do is create tables and export them to individual image files (that have appropriate titles in the images).

This seems to be a confusion between 'creating a custom table' and 'exporting the table via png'. Can you be more specific about what are you waiting for? — Rodrigo Orellana, Aug 24 '19 at 03:44

score 1 · Answer 1 · answered Aug 26 '19 at 10:23

1

You can use grid.arrange.

library(ggplot2)
library(gridExtra)
library(data.table)

df <- data.table(a=1:10, b=11:20,c=21:30, d=31:40)
png("test.png")
p <- tableGrob(df)
grid.arrange(top = "Title", p)
dev.off()

answered Aug 26 '19 at 10:23

Laura Siepman

76
1
4

Thank you, this works but is there more efficient way of getting what I want? Maybe not use grids at all? – YellowSunshine Aug 26 '19 at 18:29

R: Save a data.table as an image with Title

1 Answers1