使用exams2pdf生成考试解答时如何显示各题目分值？

Hey there! Let's work through why your exam solution document isn't showing question points even when you've set showpoints = TRUE in exams2pdf(). Here are the most common fixes to try:

• Confirm the default solution template supports points display
  The out-of-the-box solution template might not include the LaTeX code needed to render points. To check the template's content, run this in R:

  cat(readLines(system.file("templates", "solution.tex", package = "exams")), sep = "\n")
  

  Look for references to \exampoints or explicit points rendering code. If you don't see any, the template doesn't support showpoints by default—you'll need to customize it.

• Create a custom template with points display
  This is the most reliable fix if the default template is missing the necessary code:

  1. Copy the default template to your working directory so you can edit it:

     file.copy(system.file("templates", "solution.tex", package = "exams"), "custom_solution.tex")
     

  2. Open custom_solution.tex in a text editor. Find the section where questions are structured (look for \begin{question}). Modify it to include points, like this:

     \begin{question}
     \textbf{Question \thequestionnum} (\exampoints{} points)
     \exquestion
     \end{question}
     

     If you want points to show in the solution section too, add similar code where solutions are rendered.
  3. Use your custom template when generating the PDF:

     exams2pdf(your_exam_list, template = "custom_solution.tex", showpoints = TRUE)
     

• Double-check question points are defined
  showpoints only works if each question in your exam has a points attribute set. For example, when creating questions, make sure you specify points like:

  tstat_question <- tstat("tstat1", points = 4)
  

  If you forget to set points for a question, there's nothing for showpoints to display.

• Update the exams package
  Older versions of the exams package had bugs related to showpoints rendering. Run this to get the latest version:

  update.packages("exams")
  

  Then regenerate your PDF to see if the issue is resolved.

Give these steps a shot, and if you're still stuck, feel free to share a snippet of your exam code or template content—I can help dig deeper!

内容的提问来源于stack exchange，提问作者Sinval