/Python/Argmax change dafault value for multiple maxima

Argmax change dafault value for multiple maxima

def my_argmax(a):
    rows = np.where(a == a.max(axis=1)[:, None])[0]
    rows_multiple_max = rows[:-1][rows[:-1] == rows[1:]]
    my_argmax = a.argmax(axis=1)
    my_argmax[rows_multiple_max] = -1
    return my_argmax

Source: stackoverflow.com

Similar codes

0 vote158 views1 answer
What does features = data.drop(["Survived", "Sex", "Embarked"], axis=1) do in python
Python
0 vote146 views1 answer
Pyqt5 qtreewidgetitem enable drop drag
Python
0 vote175 views1 answer
Change my python working directory
Python
0 vote138 views1 answer
Days to int
Python
0 vote144 views1 answer
Find an element in Pandas
Python
0 vote145 views1 answer
Actual python iterators
Python
0 vote150 views1 answer
Difference between calling a function and referencing a function python
Python
0 vote147 views1 answer
Python - merge and incluse only specific columns
Python
3 votes143 views2 answers
Pandas df row count
Python
39 votes165 views4 answers
Round off float to 2 decimal places in python
Python