"fontsize" option in rmarkdown ==> PDF?

[Michael Hannon]

Greetings.  I am not able to the the `fontsize` option to do anything when

using `rmarkdown::render()` to produce a PDF document.

I've tried a lot of permutations, but here's a simple example from the

"LaTeX Options" section of:

    http://rmarkdown.rstudio.com/pdf_document_format.html

The two appended code segments call for "11pt" and "16pt" font size,

respectively.  So far as I can tell, the resulting PDF document is exactly the

same in both cases.

The things of interest to me are slightly more complicated.  See the end of

the message for an example of that.  And note that I've tried making the font

size 24pt, so as to eliminate any "eyeball" errors.  I.e., if `fontsize` were

doing what I want, I *would* recognize it.

Session and package information are also included below.

Any thoughts?  Thanks.

-- Mike

---

title: "Crop Analysis Q3 2013"

output: pdf_document

fontsize: 11pt

geometry: margin=1in

---

Four score and seven years ago our fathers brought forth on this continent a

new nation, conceived in liberty, and dedicated to the proposition that all

men are created equal.

########

---

title: "Crop Analysis Q3 2013"

output: pdf_document

fontsize: 16pt

geometry: margin=1in

---

Four score and seven years ago our fathers brought forth on this continent a

new nation, conceived in liberty, and dedicated to the proposition that all

men are created equal.

#########

> sessionInfo()

R version 3.1.0 (2014-04-10)

Platform: x86_64-redhat-linux-gnu (64-bit)

locale:

 [1] LC_CTYPE=en_US.utf8       LC_NUMERIC=C              LC_TIME=en_US.utf8       

 [4] LC_COLLATE=en_US.utf8     LC_MONETARY=en_US.utf8

LC_MESSAGES=en_US.utf8   

 [7] LC_PAPER=en_US.utf8       LC_NAME=C                 LC_ADDRESS=C             

[10] LC_TELEPHONE=C            LC_MEASUREMENT=en_US.utf8 LC_IDENTIFICATION=C      

attached base packages:

[1] stats     graphics  grDevices datasets  utils     methods   base     

other attached packages:

[1] rmarkdown_0.2.50

loaded via a namespace (and not attached):

[1] digest_0.6.4    evaluate_0.5.5  formatR_0.10    htmltools_0.2.4 knitr_1.6      

[6] stringr_0.6.2   tools_3.1.0     yaml_2.1.13    

> 

#########

> library(help=rmarkdown)

                Information on package ‘rmarkdown’

Description:

Package:              rmarkdown

Type:                 Package

Title:                Dynamic Documents for R

Version:              0.2.50

Date:                 2014-05-31

Author:               RStudio Inc.

.

.

.

########## YAML of actual interest (title slightly edited) 

---

title: foo

author:

date:

fontsize: 24pt

output:

  html_document:

    theme: cosmo

    fig_caption: true

  pdf_document:

    highlight: tango

    pandoc_args: [

      "--variable=geometry:margin=0.75in"

    ]

---

[Carl Boettiger]

The standard latex classes (article, book, and report) accepts only 3
different font sizes: 10pt, 11pt, and 12pt.

(I suppose the the rmarkdown documentation could make that more
obvious https://github.com/rstudio/rmarkdown/blob/master/R/pdf_document.R#L53)

You'll need to use a custom latex class if you want size 24pt font.
(You may also look into telling rmarkdown to use xelatex, but you'll
still need to adjust the class).

Cheers,

Carl

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--
Carl Boettiger
UC Santa Cruz
http://carlboettiger.info/

[Michael Hannon]

Thanks, Carl. I used 24pt just to make sure I could get something
that was visually distinct from the default, but I did want something
larger than 12pt.

-- Mike