CODEWITHSUNDEEP
r
René Nyffenegger
René Nyffenegger

Reputation: 40573

How do I use qqplot with r -f

I have this little script

library(ggplot2)

print(qplot(1:10, 1:10))

readLines("stdin", n = 1)

that I am trying to run with

r -f littleScript.R

Unfortunately, the expected plot is not displayed. In fact, nothing is displayed at all. I understand that I should use print() on qplot()'s output, yet, it doesn't help in my case.

Upvotes: 1

Views: 63

Answers (1)

jeremycg
jeremycg

Reputation: 24945

When running from a script, R doesn't invoke graphics by default.

You can add the command x11() to enable it:

library(ggplot2)
x11()
print(qplot(1:10, 1:10))

readLines("stdin", n = 1)

Alternatively you could save the plot by adding a call to jpeg/pdf etc etc:

library(ggplot2)
jpeg("myfilepath.jpg")
print(qplot(1:10, 1:10))
dev.off()
readLines("stdin", n = 1)

Upvotes: 1

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