title: How to set xticks and yticks with my imshow plot?
body: <p>My code</p>
  
  <pre><code>import numpy as np
  import matplotlib.pyplot as plt
  
  with open('nm.dat','r') as f:
      vst = map(float, f)
  
  print vst    
  
  a=np.asarray(vst)
  print len(a)
  
  a11=a.reshape(4,22)
  
  plt.imshow(a11, cmap='hot', interpolation='nearest')
  plt.colorbar()
  plt.show()
  </code></pre>
  
  <p>My image
  <a href="https://i.stack.imgur.com/SB0i6.png" rel="noreferrer"><img src="https://i.stack.imgur.com/SB0i6.png" alt="enter image description here"></a></p>
  
  <p>I would like my x axis to be marked with equidistant 0,8,16,24,32,40,48,56,64,72,80,88 ticks.For y axis 0,2,4,6,8.
  How to solve this? </p>