Pandas: Convert all the string values to upper, lower cases in a given pandas series and also find the length of the string values
Pandas: String and Regular Expression Exercise-1 with Solution
Write a Pandas program to convert all the string values to upper, lower cases in a given pandas series. Also find the length of the string values.
Sample Solution:
Python Code :
import pandas as pd
import numpy as np
s = pd.Series(['X', 'Y', 'Z', 'Aaba', 'Baca', np.nan, 'CABA', None, 'bird', 'horse', 'dog'])
print("Original series:")
print(s)
print("\nConvert all string values of the said Series to upper case:")
print(s.str.upper())
print("\nConvert all string values of the said Series to lower case:")
print(s.str.lower())
print("\nLength of the string values of the said Series:")
print(s.str.len())
Sample Output:
Original series: 0 X 1 Y 2 Z 3 Aaba 4 Baca 5 NaN 6 CABA 7 None 8 bird 9 horse 10 dog dtype: object Convert all string values of the said Series to upper case: 0 X 1 Y 2 Z 3 AABA 4 BACA 5 NaN 6 CABA 7 None 8 BIRD 9 HORSE 10 DOG dtype: object Convert all string values of the said Series to lower case: 0 x 1 y 2 z 3 aaba 4 baca 5 NaN 6 caba 7 None 8 bird 9 horse 10 dog dtype: object Length of the string values of the said Series: 0 1.0 1 1.0 2 1.0 3 4.0 4 4.0 5 NaN 6 4.0 7 NaN 8 4.0 9 5.0 10 3.0 dtype: float64
Python Code Editor:
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Documentation references for the modules, constants and functions used above:
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- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
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