Write a program in Python to filter only integer elements in a given series

Input − Assume you have the following series −

0    1 1    2 2    python 3    pandas 4    3 5    4 6    5

Output − The result for only integer elements are −

0    1 1    2 4    3 5    4 6    5

Solution 1

• Define a Series.

• Apply lambda filter method inside a regular expression to validate digits and expression accepts only strings so convert all the elements into strings. It is defined below,

   data = pd.Series(ls)    result = pd.Series(filter(lambda x:re.match(r"\d+",str(x)),data))

• Finally, check the values using the isin() function.

Example

Let us see the following implementation to get a better understanding.

import pandas as pd ls = [1,2,"python","pandas",3,4,5] data = pd.Series(ls) for i,j in data.items():    if(type(j)==int):       print(i,j)

Output

0    1 1    2 4    3 5    4 6    5

Solution 2

Example

import pandas as pd import re ls = [1,2,"python","pandas",3,4,5] data = pd.Series(ls) result = pd.Series(filter(lambda x:re.match(r"\d+",str(x)),data)) print(data[data.isin(result)])

Output

0 1 1 2 4 3 5 4 6 5