title: could not find function "multinom" nnet error + stargazer problem
body: <p>I am trying to run the following multinomial regression specified as follows and get the table as an html through stargazer:</p>
  
  <pre><code>    ml1 &lt;- multinom(as.factor(stabgroupsTH) ~  factor(pre_stab_group2) + factor(educ2) + agesup + black + male + mhd + stgyes + highrisk2 +  felony2 + dum_2005,  dd2)
  summary(ml1)
  stargazer(ml1,type="text")
  </code></pre>
  
  <p>I'm able to run a multinomial logit using <code>nnet::multinom</code> but not with only <code>multinom</code>. When I try using only <code>multinom()</code> I get the error message "could not find function "multinom"". Using <code>nnet::multinom</code> runs the model, but when I try to output the regression with stargazer I get the error "% Error: Unrecognized object type." I'm confused by 1) why only <code>multinom</code> cannot be found and why stargazer can't recognize the model object. The documentation for stargazer says that multinom is supported. </p>
  
  <p>Thanks,</p>
  
  <p>Simon</p>