Replace slice of a numpy array with values from another array

Question

Say I've got two numpy arrays which were created this way:

zeros = np.zeros((270,270))
ones = np.ones((150,150))

How can I insert ones in zeros at position [60,60]? I want an array that looks like a "square in the square".

I've tried the following two options:

np.put(empty, [60,60], ones)
np.put(empty, [3541], ones)
np.put[empty, [60:210,60:210], ones)

but the latter yields invalid syntax and the first two don't work either. Has anyone got an idea how this could work?

Jose Buraschi · Accepted Answer · 2015-04-08 07:07:56Z

8

This is one way you can replace values in zeros with ones.

zeros[60:210,60:210] = ones

answered Apr 8, 2015 at 7:07

Jose Buraschi

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2 Comments

Thanks a lot! Sometimes things can be straightforward, too ;-)

Does this still work?