Find element's index in pandas Series
I know this is a very basic question but for some reason I can't find an answer. How can I get the index of certain element of a Series in python pandas? (first occurrence would suffice)
I.e., I'd like something like:
import pandas as pd
myseries = pd.Series([1,4,0,7,5], index=[0,1,2,3,4])
print myseries.find(7) # should output 3
Certainly, it is possible to define such a method with a loop:
def find(s, el):
for i in s.index:
if s[i] == el:
return i
return None
print find(myseries, 7)
but I assume there should be a better way. How to get index of series pandas?
myseries = pd.Series([1,4,0,7,5], index=[0,1,2,3,4])
print myseries.find(7) # should output 3
for i in s.index:
if s[i] == el:
return i
return None
print find(myseries, 7)
To find element index in pandas series, use this:
myseries[myseries == 8]
3 8
dtype: int64
myseries[myseries == 8].index[0]
3Note: In order to access the series element use the index operator [ ] to access an element in a series. The index must be an integer. In order to access multiple elements from a series, we use Slice operation.