Numpy.delete Changing Arrays Of Floats To Strings

I'm using the numpy.delete function to remove elements from several arrays. I started from this question Make this simple for/if block more pythonic and arrived, after applying the

Solution 1:

If you are going to use numpy, you are going to be better off converting your lists to arrays. It would look something like:

a = np.array(a)
b = np.array(b)
c = np.array(c)

mask = (b > max_limit) | (c > max_limit)

a = a[mask]
b = b[mask]
c = c[mask]

>>> a
array(['c', 'f', 'g', 'i'],
      dtype='|S1')
>>> b
array([   1.,  784.,   43.,    2.])
>>> c
array([ 32.,   7.,   2.,  23.])