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State whether the following statement is true or false? The read_csv method can read multiple columns of an input file as indexes.
AnsweredAdam asked 4 years ago • 
7253 views1 answers0 votes
Which of the following expression returns data of column B of data frame df, defined below? import pandas as pd df = pd.DataFrame({'A':[34, 78, 54], 'B':[12, 67, 43]}, index=['r1', 'r2', 'r3'])
AnsweredAdam asked 4 years ago • 
7594 views1 answers0 votes
Which of the following expression is used to delete the column, A from a data frame named df?
AnsweredAdam asked 4 years ago • 
6946 views1 answers0 votes
Which of the following expression returns the second row of df, defined below? import pandas df = pd.DataFrame({'A':[34, 78, 54], 'B':[12, 67, 43]}, index=['r1', 'r2', 'r3'])
AnsweredAdam asked 4 years ago • 
7214 views1 answers0 votes
Which of the following expression is used to add a new column 'C' to a data frame df, with three rows?
AnsweredAdam asked 4 years ago • 
7829 views1 answers0 votes
What does the expression df.loc['r4'] = [67, 78] do for the data frame df, defined below? df = pd.DataFrame({'A':[34, 78, 54], 'B':[12, 67, 43]}, index=['r1', 'r2', 'r3'])
AnsweredAdam asked 4 years ago • 
7138 views1 answers0 votes
Which of the following expression returns the first two rows of df, defined below? import pandas as pd df = pd.DataFrame({'A':[34, 78, 54], 'B':[12, 67, 43]}, index=['r1', 'r2', 'r3'])
AnsweredAdam asked 4 years ago • 
6365 views1 answers0 votes
Which of the following expression returns last two rows of df, defined below? import pandas as pd df = pd.DataFrame({'A':[34, 78, 54], 'B':[12, 67, 43]}, index=['r1', 'r2', 'r3'])
AnsweredAdam asked 4 years ago • 
9415 views1 answers0 votes
Which of the following attributes or arguments are used to set column names of a data frame?
AnsweredAdam asked 4 years ago • 
4236 views1 answers0 votes
What is the shape of the data frame df defined in the below-shown code? import pandas as pd data = [{‘a’: 1, ‘b’: 2}, {‘a’: 5, ‘b’: 10, ‘c’: 20}] df = pd.DataFrame(data)
AnsweredAdam asked 4 years ago • 
2108 views1 answers0 votes
What is the output of the following code? import pandas as pd s = pd.Series([89.2, 76.4, 98.2, 75.9], index=list('abcd')) print(s[['c', 'a']])
AnsweredAdam asked 4 years ago • 
8061 views1 answers0 votes
Which of the following is not a Data Structure of Pandas?
AnsweredAdam asked 4 years ago • 
5379 views1 answers0 votes
Which of the following cannot be used to create a Data frame?
AnsweredAdam asked 4 years ago • 
3053 views1 answers0 votes
Which of the following expressions are used to check if each element of a series s is present in the list of elements [67, 32]. Series s is defined as shown below. s = pd.Series([99, 32, 67],list('abc'))
AnsweredAdam asked 4 years ago • 
5400 views1 answers0 votes
Which of the following argument is used to label the elements of a series?
AnsweredAdam asked 4 years ago • 
4199 views1 answers0 votes
What is the output of the expression 'b' in s, where s is the series defined as shown below?
AnsweredAdam asked 4 years ago • 
4981 views1 answers-1 votes
What is the shape of the data frame df defined in the below-shown code? import pandas as pd data = [{‘a’: 1, ‘b’: 2}, {‘a’: 5, ‘b’: 10, ‘c’: 20}] df = pd.DataFrame(data, columns=[‘a’, ‘b’])
AnsweredAdam asked 4 years ago • 
11037 views1 answers0 votes
What is the data type of series s defined in below code? import pandas as pd s = pd.Series([9.2, ‘hello’, 89])
AnsweredAdam asked 4 years ago • 
5166 views1 answers0 votes
Which of the following commands run only one test case, present in sample_module.py using pytest?
AnsweredAdam asked 4 years ago • 
11163 views1 answers0 votes
Pytest is available as a part of Python standard library. State true or false.
AnsweredAdam asked 4 years ago • 
5578 views1 answers0 votes
Pytest is capable of discovering and running tests written in unittest and nose. State true or false.
AnsweredAdam asked 4 years ago • 
4886 views1 answers0 votes
Which of the following option is used to generate Junit style test report in xml using pytest?
AnsweredAdam asked 4 years ago • 
7675 views1 answers0 votes
Which of the following decorator is used to transform a user defined function into a fixture using pytest?
AnsweredAdam asked 4 years ago • 
7125 views1 answers0 votes
Which of the following decorator is used to skip a test unconditionally, with pytest?
AnsweredAdam asked 4 years ago • 
7483 views1 answers0 votes
How many tests are run, when below code is tested using pytest import unittest def test_sample1(): assert 3 == 3 class SampleTestClass(unittest.TestCase): def test_sample2(self): self.assertEqual(3, 3)
AnsweredAdam asked 4 years ago • 
14391 views1 answers0 votes
Which of the following are the function level fixtures available in pytest?
AnsweredAdam asked 4 years ago • 
7641 views1 answers0 votes
Which of the following command is used to discover all tests in a project and execute them using pytest?
AnsweredAdam asked 4 years ago • 
7634 views1 answers0 votes
How many tests of sample_module.py shown below, are successfully passed, when run with nose? from nose.tools import raises class SampleTestClass: @raises(TypeError) def test_sample1(self): pow(2, '4') @raises(Execption) def test_sample2(self): max([7, 8, '4']) @raises(Exception) def test_sample3(self): int('hello')
AnsweredAdam asked 4 years ago • 
7576 views1 answers1 votes
How many tests are run, when below code is tested using nose? import unittest def test_sample1(): assert 3 == 3 class SampleTestClass(unittest.TestCase): def test_sample2(self): self.assertEqual(3, 3)
AnsweredAdam asked 4 years ago • 
5853 views1 answers0 votes
Unittest Tests can be run using nose. State true or false.
AnsweredAdam asked 4 years ago • 
6163 views1 answers0 votes
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