title: Where does the bootstrap standard error live in the boot class?
body: <p>Consider the following bootstrap:</p>
  
  <pre><code>library(MASS)
  library(boot)
  
  # c)
  set.seed(1)
  boot.fn= function(data, index) mean(data[index])
  output=boot(Boston$medv, boot.fn, 1000)
  </code></pre>
  
  <p>If we run <code>print(output)</code>, we get </p>
  
  <pre><code>Call:
  boot(data = Boston$medv, statistic = boot.fn, R = 1000)
  
  
  Bootstrap Statistics :
      original      bias    std. error
  t1* 22.53281 0.008517589   0.4119374
  </code></pre>
  
  <p>However, when I examine the <code>output</code> object, I cannot find values representing the bootstrap statistics. Where is <code>original</code>, <code>bias</code> and <code>std. error</code> in the actual <code>output</code> object returned by boot?</p>