Question 286210 in Debian Question posted in
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Debian – pdf from Rmarkdown – landscape and aspectratio=169

I have made a PDF from an Rmarkdown file.
I wish to make the pdf in landscape mode so that it occupies the full screen.
The landscape mode works but it does not occupy the full screen. I have read this article which recommends setting aspectratio=169. This is what I am unable to do.

Here is a reproducible example:


---
title: "Testing landscape and aspect ratio"
output: 
  pdf_document:
    number_sections: true
classoption:
  - landscape
  - "aspectratio=169"
header-includes:
   - usepackage{dcolumn} 
documentclass: article
geometry: margin=1.5cm
---

```{r}

plot(rnorm(100))

```

I have tried only classoption: landscape. That does make it landscape but does not occupy the full screen.

Here is a screenshot of the output:

Picture which does not cover the whole page

Here is my session info():

> sessionInfo()
R version 4.3.1 (2023-06-16)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Debian GNU/Linux 11 (bullseye)

Matrix products: default
BLAS:   /usr/lib/x86_64-linux-gnu/openblas-pthread/libblas.so.3 
LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/libopenblasp-r0.3.13.so;  LAPACK version 3.9.0

locale:
 [1] LC_CTYPE=en_IN       LC_NUMERIC=C         LC_TIME=en_IN       
 [4] LC_COLLATE=en_IN     LC_MONETARY=en_IN    LC_MESSAGES=en_IN   
 [7] LC_PAPER=en_IN       LC_NAME=C            LC_ADDRESS=C        
[10] LC_TELEPHONE=C       LC_MEASUREMENT=en_IN LC_IDENTIFICATION=C 

time zone: Asia/Kolkata
tzcode source: system (glibc)

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] knitr_1.43

loaded via a namespace (and not attached):
[1] compiler_4.3.1 tools_4.3.1    xfun_0.39     
>

Update: My R version has changed but the output from this code is still the same.

Here is my new sessionInfo():

> sessionInfo()
R version 4.3.2 (2023-10-31)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Debian GNU/Linux 11 (bullseye)

Matrix products: default
BLAS:   /usr/lib/x86_64-linux-gnu/openblas-pthread/libblas.so.3 
LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/libopenblasp-r0.3.13.so;  LAPACK version 3.9.0

locale:
 [1] LC_CTYPE=en_IN       LC_NUMERIC=C         LC_TIME=en_IN       
 [4] LC_COLLATE=en_IN     LC_MONETARY=en_IN    LC_MESSAGES=en_IN   
 [7] LC_PAPER=en_IN       LC_NAME=C            LC_ADDRESS=C        
[10] LC_TELEPHONE=C       LC_MEASUREMENT=en_IN LC_IDENTIFICATION=C 

time zone: Asia/Kolkata
tzcode source: system (glibc)

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
[1] compiler_4.3.2
>
Tags:

2

Answers


  1. 0

    You could use out.extra='keepaspectratio=true' chunk options. See this post: "% are translated to scaling factors to textheight and linewidth)"

    ---
title: "Testing landscape and aspect ratio"
output: 
  pdf_document:
    number_sections: true
classoption:
  - landscape
  - "aspectratio=169"
header-includes:
   - usepackage{dcolumn} 
documentclass: article
geometry: margin=1.5cm
---

```{r, out.extra='keepaspectratio=true', out.height='100%', out.width="100%"}
plot(rnorm(100))
```

    Result:

    enter image description here

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  2. 0

    Because this is a base-R plot, you could do some of what you want more easily by controlling some par() settings. For example, to avoid extra space around the plot, use

    par(mar=c(4,4,1,1)+.1)
plot(rnorm(100))
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