title: Coverting Back One Hot Encoded Results back to single Column in Python
body: <p>I was doing Multi-class Classification using Keras.It contained 5 classes of Output. I converted the single class vector to matrix using one hot encoding and made a model. Now to evaluate the model I want to convert back the 5 class probabilistic result back to Single Column. </p>
  
  <p>I am getting this as output in numpy array format</p>
  
  <pre><code>..................0..................1............................2.......................3.............................4
  
   5.35433665e-02   1.72592481e-05   1.49291719e-03   9.44392741e-01
      5.53713820e-04  
     1.97096306e-05   2.08907949e-08   3.11666554e-07   1.40611945e-07
      9.99979794e-01  
     9.99999225e-01   2.42999278e-07   1.58917388e-07   7.84497018e-08
      2.85837785e-07  
     7.09977685e-05   1.02068476e-09   1.38186664e-07   9.99928594e-01
      2.73126261e-07  
     1.29937407e-05   2.49388819e-07   9.99986231e-01   4.76015231e-07
      7.39421040e-08 
  </code></pre>
  
  <p>Want to convert this matrix to </p>
  
  <pre><code>[3,4,0,3,2]
  </code></pre>