title: How to suppress function return
body: <p>Suppose I have a function that has multiple returned values (shown below). However, this output is not informative as users do not know what each value stands for unless they look up the function definition. So I would like to use <code>println()</code> to print the results with appropriate names to the screen, while suppressing the the actual returned values from being printed on the screen. In R, the function <code>invisible()</code> does that, but how do you do the same thing in Julia? </p>
  
  <pre><code>function trimci(x::Array; tr=0.2, alpha=0.05, nullvalue=0)
      se=sqrt(winvar(x,tr=tr))./((1-2.*tr)*sqrt(length(x)))
      ci=cell(2)
      df=length(x)-2.*floor(tr.*length(x))-1
      ci=[tmean(x, tr=tr)-qt(1-alpha./2, df).*se, tmean(x, tr=tr)+qt(1-alpha./2, df).*se]
      test=(tmean(x,tr=tr)-nullvalue)./se
      sig=2.*(1-pt(abs(test),df))
      return ci, tmean(x, tr=tr), test, se, sig
  end
  </code></pre>