R-观星者添加参考类别 [英] R - stargazer add reference categories

问题描述

我想知道是否有人提出了使用stargazer来显示分类变量的参考类别的解决方案?

I was wondering if someone came with a solution to show up the reference categories of categorical variables using stargazer?

library(stargazer) 

让我们想象gear和carb是分类变量

Let us imagine that gear and carb are categorical variables

mtcars$gear = factor(mtcars$gear)
mtcars$carb = factor(mtcars$carb)

我用

lm1 = lm(disp ~ gear + carb, mtcars)

和stargaze结果.

stargazer(lm1, single.row = TRUE,  omit.table.layout = "sn")

我知道

但是，我发现自己总是回到tex文件来定制参考类别以获取

However, I find myself always going back to the tex file to custom the reference categories to get

基本上，我要做的是在变量之间添加latex:

Basically, what I do is to add to the latex in between variables :

gear (ref = 3) &  \\ 
 \-\hspace{0.3cm} gear4 & $-$202.921$^{***}$ (22.477) \\ 

，依此类推.

任何人都知道我是否可以在stargazer函数中添加此类lines吗?

Anyone had any idea if I can add these kind of lines in the stargazer function ?

推荐答案

您可以通过向stargazer提供covariate.labels来实现所需的输出:

You can achieve the output you want by providing covariate.labels to stargazer:

library(magrittr)
library(stringr) 
library(stargazer) 

covlabels <-
    names(lm1$coefficients)[-1] %>%
    if_else(str_sub(., 1, 4) == "gear" | str_sub(., 1, 4) == "carb", paste("\\-\\hspace{0.3cm}", .), .) %>%
    if_else(str_sub(., 18, 24) == "gear4", paste("gear (ref=3) \\\\", .), .) %>%
    if_else(str_sub(., 18, 24) == "carb2", paste("carb (ref=1) \\\\", .), .) 

stargazer(lm1, single.row = TRUE,  omit.table.layout = "sn", covariate.labels=covlabels)

收益

% Table created by stargazer v.5.2 by Marek Hlavac, Harvard University. E-mail: hlavac at fas.harvard.edu
% Date and time: Mon, Jan 08, 2018 - 3:18:09 AM
\begin{table}[!htbp] \centering 
  \caption{} 
  \label{} 
\begin{tabular}{@{\extracolsep{5pt}}lc} 
\\[-1.8ex]\hline 
\hline \\[-1.8ex] 
 & \multicolumn{1}{c}{\textit{Dependent variable:}} \\ 
\cline{2-2} 
\\[-1.8ex] & disp \\ 
\hline \\[-1.8ex] 
 gear (ref=3) \\ \-\hspace{0.3cm} gear4 & $-$202.921$^{***}$ (22.477) \\ 
  \-\hspace{0.3cm} gear5 & $-$160.898$^{***}$ (36.282) \\ 
  carb (ref=1) \\ \-\hspace{0.3cm} carb2 & 71.282$^{**}$ (27.919) \\ 
  \-\hspace{0.3cm} carb3 & 25.574 (39.919) \\ 
  \-\hspace{0.3cm} carb4 & 155.852$^{***}$ (27.355) \\ 
  \-\hspace{0.3cm} carb6 & 55.672 (68.065) \\ 
  \-\hspace{0.3cm} carb8 & 211.672$^{***}$ (68.065) \\ 
  Constant & 250.226$^{***}$ (24.363) \\ 
 \hline \\[-1.8ex] 
\hline 
\hline \\[-1.8ex] 
\end{tabular} 
\end{table} 

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