In [1]:

    

import numpy as np

a = np.array([1, 2, 3])
np.ediff1d(a, np.nan)


    

    




---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-1-13abd29cafa9> in <module>
      2 
      3 a = np.array([1, 2, 3])
----> 4 np.ediff1d(a, np.nan)

~/anaconda3/envs/ModSimPy/lib/python3.7/site-packages/numpy/lib/arraysetops.py in ediff1d(ary, to_end, to_begin)
    116         l_end = 0
    117     else:
--> 118         _to_end = np.asanyarray(to_end, dtype=dtype_req)
    119         # check that casting has not overflowed
    120         if not np.all(_to_end == to_end):

~/anaconda3/envs/ModSimPy/lib/python3.7/site-packages/numpy/core/numeric.py in asanyarray(a, dtype, order)
    589 
    590     """
--> 591     return array(a, dtype, copy=False, order=order, subok=True)
    592 
    593 

ValueError: cannot convert float NaN to integer

In [ ]:

    




    

In [2]:

    

a[2] = np.nan
a


    

    




---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-2-6f1cfd3684be> in <module>
----> 1 a[2] = np.nan
      2 a

ValueError: cannot convert float NaN to integer

In [ ]: