python - pandas pivot_table apply aggfunc last instance -

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i have made pivot table various columns , have applied aggfunc np.sum , first , count. want last instance of corresponding value of column dataframe. there function serve purpose?

i think can use 

aggfunc='last'

sample:

df = pd.dataframe({ 'age':[35, 37, 40, 29, 31, 26, 28],                    'city':['b', 'ch', 'la', 'ch', 'b', 'b', 'ch'],                    'position':['m','m','m','p', 'p','m','m']}) print (df)    age city position 0   35    b        m 1   37   ch        m 2   40   la        m 3   29   ch        p 4   31    b        p 5   26    b        m 6   28   ch        m  print (df.pivot_table(index='position', columns='city', values='age', aggfunc='last')) city         b    ch    la position                   m         26.0  28.0  40.0 p         31.0  29.0   nan

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