Quiz Space

Machine Learning Practice · Quiz 1 · 7 Jul 2024 · May 2024 term

Question 16: Consider following data and code snippet: Based on the a…

Question 16

+2 marksNumerical answer

Consider following data and code snippet:

python
from sklearn.compose import ColumnTransformer
from sklearn.preprocessing import MinMaxScaler, OrdinalEncoder, MaxAbsScaler
from sklearn.impute import SimpleImputer
from sklearn.pipeline import Pipeline


X = np.array([[5, 4, 'cat'],
              [4, -1, 'dog'],
              [3, 1, 'bird'],
              [np.nan, 3, 'cat']])


impute_scale_pipe = Pipeline([('impute', SimpleImputer()),
                              ('scale', MinMaxScaler())])


ct = ColumnTransformer([('impute_scale', impute_scale_pipe, [0,1]),
                        ('scale_only', MaxAbsScaler(), [1]),
                        ('categorical', OrdinalEncoder(), [2])])
transformed_X = ct.fit_transform(X)

Based on the above data, answer the given subquestions.

What will be the output of the following code snippet:

Enter -1, if you think the above code snippet will generate an error.

Show answer

Correct answer: 0.4

See the whole paperTake it as a mock test

Question 16 of 24 in the IIT Madras BS Machine Learning Practice (MLP) Quiz 1 paper sat on 7 Jul 2024, in the May 2024 term (IIT M DIPLOMA AN EXAM QDD2 7 July 2024). It carries 2 marks.

More questions from this paper

  1. Q1What will be the output of the following code snippet? Enter -1, if you think the above code snippet will generate an e…
  2. Q2What will be the output of the following code snippet? Enter -1, if you think the above code snippet will generate an e…
  3. Q3What will be the output of the following code snippet? Enter -1, if you think the above code snippet will generate an e…
  4. Q4What will be the output of the following code snippet? Enter -1, if you think the above code snippet will generate an e…
  5. Q5Given the data, which of the following options will provide the same output?
  6. Q6If you would like to see the most frequent car manufacturers in the dataset, which of the following can be used?
  7. Q7Which of the following choice(s) are correct ?
  8. Q8Which of the following options are true about Pearson correlation matrix ?
  9. Q9Figure question
  10. Q10We need to preprocess the data before using it for model building due to which of the following reasons ?
  11. Q11Each row represents a data point. There are exactly 4 points. The index of points starts from 0 and ends at 3 (included…
  12. Q12Each row represents a data point. There are exactly 4 points. The index of points starts from 0 and ends at 3 (included…
  13. Q13Consider following data and code snippet: Based on the above data, answer the given subquestions. What will be the outp…
  14. Q14Consider following data and code snippet: Based on the above data, answer the given subquestions. What will be the outp…
  15. Q15Consider following data and code snippet: Based on the above data, answer the given subquestions. What will be the outp…
  16. Q17Consider following data and code snippet: Based on the above data, answer the given subquestions. Which of the followin…
  17. Q18Which of the following options will be the output of the given code?
  18. Q19Go through the code snippet given below and answer the given subquestions.
  19. Q20Consider the following code: Which of the following may be the correct output of the above code?:
  20. Q21Consider the following code: Which of the following is more likely to be true?
  21. Q22What will be the output of the following code ?
  22. Q23What is the purpose of the tol parameter of the SGDRegressor() in the given code below?
  23. Q24Consider the following code block and if needed make appropriate assumptions: Which of the following may be appropriate…