title: how to select row one by one and find minimum value in each row in numpy
body: <p>i have array <strong>A</strong> of 9x9 dimension. I want to select particular rows e.g. 2,5 ,6  and 7 and calculate minimum values in each row.</p>
  
  <p>I tried</p>
  
  <p>import numpy as np</p>
  
  <p>import pandas as pd</p>
  
  <p>A.min(axis=1)</p>
  
  <p><code>array([0, 0, 0, 0, 0, 0, 0, 0, 0])</code></p>
  
  <p>but it gives values for all rows simultaneosly. i want for particular rows only.</p>