Unable to save/open pdf file in R

Question

I am new to R programming and I am trying to learn it. So, please bear with me if this question is silly!

I am trying to execute the below code in RStudio and I get the following error:

R version 3.6.2 (2019-12-12) -- "Dark and Stormy Night"
Copyright (C) 2019 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64 (64-bit)

[Workspace loaded from ~/.RData]

> x=rnorm(100)
> y=rnorm(100)
> pdf("Figure.pdf")
**Error in pdf("Figure.pdf") : cannot open file 'Figure.pdf'**
> plot(x,y, col="green")
> dev.off()
null device 

I am unable to save or open the pdf file. I tried t o check my permissions and I also ran the Rstudio with administer rights but no luck!

Answer 1

One can direct the output of R graphics functions to PDF files through the use of the pdf() function.

The file = argument is a named argument (versus a positional argument), and therefore one needs to use the name in order to change its value. The reasoning for this is that the PDF device function's default value for file = allows multiple PDFs to be written, per the R documentation for pdf().

x=rnorm(100)
y=rnorm(100)
pdf(file = "Figure.pdf")
plot(x,y, col="green")
dev.off()

...produces a PDF in the current R working directory that contains the following image.