R Markdown生成PDF时texreg回归输出过宽超出页面求助

以下是几个直接有效的解决方法，按优先级排序：

• 用LaTeX的resizebox自动缩放表格
  因为texreg直接输出LaTeX代码，knitr的out.width参数对它无效。可以手动包裹LaTeX的缩放命令，强制表格适配页面宽度：

  cat("\\begin{table}[ht]
  \\resizebox{\\textwidth}{!}{")
  texreg(list(M1aR,M1bR,M1cR,M1dR), 
         dcolumn = TRUE, booktabs = TRUE, 
         stars = c(0.01, 0.05, 0.1),
         include.adjrs = FALSE, 
         caption = "Lifetime CO2", 
         digits = 4, 
         reorder.coef = c(2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,1),
         float = FALSE) # 关闭texreg自带的table环境，避免嵌套冲突
  cat("}
  \\end{table}")
  

• 缩短过长的变量名
  如果表格过宽是因为变量名太长，直接用custom.coef.names替换成短名称，对应你reorder.coef后的变量顺序：

  texreg(list(M1aR,M1bR,M1cR,M1dR), 
         dcolumn = TRUE, booktabs = TRUE, 
         stars = c(0.01, 0.05, 0.1),
         include.adjrs = FALSE, 
         caption = "Lifetime CO2", 
         digits = 4, 
         reorder.coef = c(2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,1),
         custom.coef.names = c("Var2", "Var3", ..., "Var1")) # 按顺序写18个短名称
  

• 手动指定列宽
  用texreg的colwidth参数给每列设置固定宽度，第一列是变量名，后面四列对应四个模型，比如：

  texreg(list(M1aR,M1bR,M1cR,M1dR), 
         dcolumn = TRUE, booktabs = TRUE, 
         stars = c(0.01, 0.05, 0.1),
         include.adjrs = FALSE, 
         caption = "Lifetime CO2", 
         digits = 4, 
         reorder.coef = c(2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,1),
         colwidth = c("2.2cm", "1cm", "1cm", "1cm", "1cm")) # 根据实际调整数值
  

• 缩小字体或减少小数位数

  • 减少小数位数：把digits=4改成digits=3，压缩数值列宽度；
  • 缩小表格字体：在table环境里加\small或\footnotesize，比如：

    cat("\\begin{table}[ht]
    \\footnotesize")
    texreg(list(M1aR,M1bR,M1cR,M1dR), 
           dcolumn = TRUE, booktabs = TRUE, 
           stars = c(0.01, 0.05, 0.1),
           include.adjrs = FALSE, 
           caption = "Lifetime CO2", 
           digits = 4, 
           reorder.coef = c(2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,1),
           float = FALSE)
    cat("\\end{table}")
    

内容的提问来源于stack exchange，提问作者Lilly