title: Copying row element in a numpy array
body: <p>I have an array <code>X</code> of <code>&lt;class 'scipy.sparse.csr.csr_matrix'&gt;</code> format with shape <code>(44, 4095)</code></p>
  
  <p>I would like to now to create a new numpy array say <code>X_train = np.empty([44, 4095])</code> and copy row by row in a different order. Say I want the 5th row of <code>X</code> in 1st row of <code>X_train</code>.</p>
  
  <p>How do I do this (copying an entire row into a new numpy array) similar to matlab?</p>