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CBSE Class 12 Informatics Practices Question 16 of 44

Data Handling using Pandas — Question 17

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17
Question

Question 17(a)

Find the error in the following code fragments:

S2 = pd.Series([101, 102, 1-2, 104])
print (S2.index)
S2.index = [0.1.2.3, 4, 5]
S2[5] = 220
print (S2)
Answer 
S2 = pd.Series([101, 102, 1-2, 104]) 
print(S2.index)
S2.index = [0.1.2.3, 4, 5] #Error 1
S2[5] = 220
print(S2)

Error 1 — In the line S2.index = [0.1.2.3, 4, 5], the index values are not separated by commas. It should be S2.index = [0, 1, 2, 3, 4, 5]. Additionally, the Series S2 initially has four elements, so assigning a new index list of six elements ([0, 1, 2, 3, 4, 5]) to S2.index will raise a ValueError because the new index list length does not match the length of the Series.

The corrected code is:

S2 = pd.Series([101, 102, 1-2, 104])
print(S2.index)
S2.index = [0, 1, 2, 3]
S2[5] = 220
print(S2)