Count all values in a matrix greater than a value

Question

I have to count all the values in a matrix (2-d array) that are greater than 200.

The code I wrote down for this is:

za=0   
p31 = numpy.asarray(o31)         


        

Answer 1

Here's a variant that uses fancy indexing and has the actual values as an intermediate:

p31 = numpy.asarray(o31)
values = p31[p31<200]
za = len(values)