title: tensorboard with numpy array
body: <p>Can someone give a example on how to use tensorboard visualize numpy array value?</p>
  
  <p>There is a related question here, I don't really get it.
  <a href="https://stackoverflow.com/questions/38060078/tensorboard-logging-non-tensor-numpy-information-auc">Tensorboard logging non-tensor (numpy) information (AUC)</a></p>
  
  <p>For example, 
  If I have </p>
  
  <pre><code>for i in range(100):
      foo = np.random.rand(3,2)
  </code></pre>
  
  <p>How can I keep tracking the distribution of foo using tensorboard for 100 iterations? Can someone give a code example?
  Thanks. </p>