Python numpy filter two-dimensional array by condition

Question

Python newbie here, I have read Filter rows of a numpy array? and the doc but still can\'t figure out how to code it the python way.

Example array I have: (the real

Answer 1

Try this:

>>> a[numpy.in1d(a[:,1], filter)]
array([['2', 'a'],
       ['4', 'c']], 
      dtype='|S21')

Also go through http://docs.scipy.org/doc/numpy/reference/generated/numpy.in1d.html