title: extract coefficients from glm in R
body: <p>I have performed a logistic regression with the following result:</p>
  
  <pre><code>ssi.logit.single.age["coefficients"]
  # $coefficients
  #  (Intercept)          age 
  # -3.425062382  0.009916508 
  </code></pre>
  
  <p>I need to pick up the coefficient for <code>age</code>, and currently I use the following code:</p>
  
  <pre><code>ssi.logit.single.age["coefficients"][[1]][2]
  </code></pre>
  
  <p>It works, but I don't like the cryptic code here, can I use the name of the coefficient (i.e. <code>(Intercept)</code> or <code>age</code>)</p>