title: graph the contents of a matrix in python (using matplotlib)
body: <p>Hi I need to graph the contents of a matrix where each row represents a different feature and each column is a different time point. In other words, I want to see the change in features over time and I have stacked each feature in the form of a matrix. C is the matrix</p>
  
  <pre><code>A=C.tolist() #convert matrix to list.
  R=[]
  for i in xrange(len(A[0])):
      R+=[[i]*len(A[i])]    
  for j in xrange(len(A[0])):
      S=[]
      S=C[0:len(C)][j]
      pylab.plot(R[j],S,'r*')
  pylab.show()
  </code></pre>
  
  <p>Is this right/is there a more efficient way of doing this? Thanks!</p>