title: How do you show only one of 2 outcomes using table1 in R?
body: <p>The following code produces a table that tells us a number of things, in particular how many of the cars were Chevy (split by Sound).</p>
  <pre><code>library(caret)
  data(cars)
  library(table1)
  table1( ~factor(Chevy) + Mileage |Sound, data =cars )
  </code></pre>
  <p>The table outputs how many cars were Chevy (Chevy[i] = 1) and how many weren't (Chevy[i]=0). I'd like to display only one of these two in the table, say (Chevy[i] = 1), so as to not have redundant clutter. Can I do this with table1? How do I output the same table that the above code produces without the Chevy = 0 row?</p>
  <p>Edit: I originally forgot to load caret, which is where the cars dataset is located.</p>