title: How to mask an array column by column
body: <p>I have an array like the following</p>
  
  <pre><code>Table = [[True,  False, False, False, False], 
           [False, False, True,  False, False],
           [True,  False, False, True,  False]]
  </code></pre>
  
  <p>Is there any way to mask all column by column to MaskTable, the final result as </p>
  
  <pre><code>MaskTable = [True, False, True, True, False]
  </code></pre>