当另存为 PDF 时，如何使 R 绘图使用拉丁现代字体系列? [英] How can I make an R plot use the Latin Modern font family when saved as a PDF?

问题描述

如果我输入

par(family='CM Roman')

然后我可以得到一个用 Computer Modern 字体显示的图.但是，当我尝试将其另存为 PDF 时，它会显示为空白文档，这与我删除该行不同.

我怎样才能让它正确地保存为 PDF?

另外，我怎样才能使用拉丁现代而不是计算机现代?

解决方案

这就是我在 Windows 中的做法:

1. 安装 extrafont 包.
2. 安装拉丁现代字体，例如来自

   导出的 pdf:
   

   If I type

   par(family='CM Roman')
   

   then I can get a plot to display with the Computer Modern font. However, when I try to save it as a PDF, it comes up as a blank document, unlike if I take out that line.

   How can I get it to save correctly as a PDF?

   Also, how can I use Latin Modern instead of Computer Modern?

   解决方案

   This is how I did it in Windows:

   1. Install the extrafont package.
   2. Install Latin Modern fonts, e.g. from http://www.fontsquirrel.com/fonts/latin-modern-roman. Watch out, you need to install the TTF version of the font, font_import() can't handle OTF.
   3. Import the fonts using font_import().
   4. Load the fonts using loadfonts(device = "win"). Use the device = "Win" parameter to make the preview in R Studio work.
   5. Set the font family graphics parameter using par(family = "LM Roman 10").
   6. Plotting in R Studio now works and so does pdf export (see the pictures below).

   This is the full code you need to use:

   # Run once
   install.packages("extrafont")
   library(extrafont)
   # Install **TTF** Latin Modern Roman fonts from www.fontsquirrel.com/fonts/latin-modern-roman
   # Import the newly installed LModern fonts, change the pattern according to the 
   # filename of the lmodern ttf files in your fonts folder
   font_import(pattern = "lmroman*")
   
   
   # Run each time
   library(extrafont)
   loadfonts(device = "win")
   par(family = "LM Roman 10")
   x <- seq(1, 10, 1)
   y <- seq(1, 10, 1)
   plot(y ~ x, main="This plot uses LaTeX font!", ylab = expression(alpha))
   

   R Studio preview:
   

   Exported pdf:
   

   这篇关于当另存为 PDF 时，如何使 R 绘图使用拉丁现代字体系列?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！