is there a posibillity to find out the position on an element in an array with numpy?

Question

If i've got an numpy array like for example [1, 7, 10, 5, 2, 9, 8], is there a posibillity to find out on which position in this array is one special Element, for example the 5? Thanks for your help!

Does this answer your question? [Is there a NumPy function to return the first index of something in an array?](https://stackoverflow.com/questions/432112/is-there-a-numpy-function-to-return-the-first-index-of-something-in-an-array) — Mihai Alexandru-Ionut, Nov 29 '20 at 13:13

score 1 · Accepted Answer · answered Nov 29 '20 at 13:21

1

flag=0
demo = [1, 7, 10, 5, 2, 9, 8]
for x in demo:
    if x==5:
        print('Position',flag+1)
    flag+=1

This might just work although there are many other ways but this one simple to digest

answered Nov 29 '20 at 13:21

Brainiac

159
8

score 0 · Answer 2 · answered Nov 29 '20 at 13:36

0

i= numpy.where(vector == 5)

By numpy library you can do this without loop.

answered Nov 29 '20 at 13:36

Afsaneh Ebrahimi

5
6

score -1 · Answer 3 · answered Nov 29 '20 at 14:53

-1

x=[1, 7, 10, 5, 2, 9, 8]
print(x.index(5))

It returns the first occurrence of the specified value.

answered Nov 29 '20 at 14:53

Pradyumna C

11
1

Question was asking for a method using `numpy`, not standard library. – Andre.IDK Nov 29 '20 at 16:45

is there a posibillity to find out the position on an element in an array with numpy?

3 Answers3