title: How to change the title of the moderating variable in an effects plot?
body: <p>I am using base plot and the "effects" package together to plot an interaction. While I can change the xlab and the ylab, I was wondering how I can change the title of the facet wrap (which defaults to the code I use for it in my R script). Moreover, I would like to avoid the suboptinal option of going back and renaming the variable earlier on in the analysis.</p>
  
  <p>Here is the plot. You can see that the moderating variable is the code I assigned it in R. I would like to rename it.</p>
  
  <p><img src="https://i.stack.imgur.com/IWtPd.png" alt="Here is the plot. You can see that the moderating variable is the code I assigned it in R. I would like to rename it."></p>
  
  <pre><code>plot(
    effect("incaccomp_pc09.recode * Congress.recode", 
           Logit.LegA.Interact
    ), 
    xlab = "Congressional Approval",
    ylab = "Probability of Voting for a INC",
    main = "Interaction Plot of Accomplish  * Cong Approval"
  )
  </code></pre>
  
  <p>Thanks for the help!</p>