How to append elements to a numpy array

Question

I want to do the equivalent to adding elements in a python list recursively in Numpy, As in the following code

matrix = open(\'workfile\', \'w\')
A = []
for          


        

Answer 1

You need to pass the array, A, to Numpy.

matrix = open('workfile', 'w')
A = np.array([])
for row in matrix:
    A = numpy.append(A, row)

print A

However, loading from the files directly is probably a nicer solution.