python - numpy array iteration to track maximum number so far -

March 15, 2011

So far, it is easy to walk through a two-dimensional array to store the maximum value obtained while running with a particular dimension. The way. For example, I have an array:

  [[2, 1, 5], [-1, -1, 4], [4, 3, 2], [2, 3, 4]]    and I want the following output:  
  [[2, 2, 5], [-1, -1, 4] , [4, 4, 4], [2, 3, 4]]    Thanks!   
 
  Easy; Use:  
  & gt; & Gt; & Gt; Numpy.maximum.accumulate (a, axis = 1) array ([[2, 2, 5], [-1, -1, 4], [4, 4, 4], [2, 3, 4]])    

 


  

















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