title: the way to get model coefficient after building Lasso using glmnet
body: <p>After building the <code>Lasso</code> model as follows, I would like to get see the model coefficient.</p>
  
  <pre><code>fit&lt;-glmnet(as.matrix(x),y,alpha=1)
  </code></pre>
  
  <p>The  <code>Glmnet</code> website <code>http://web.stanford.edu/~hastie/glmnet/glmnet_alpha.html</code> shows the following command. I do not understand the meaning of <code>s</code> here. When removing s, the <code>coef(fit)</code> will return a matrix, which is not very understandable. </p>
  
  <p><img src="https://i.stack.imgur.com/3yzzl.png" alt="enter image description here"></p>