Important MCQs R Package Development 13

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The post is about MCQs R Package Development Quiz. The quiz also contains questions about git. There are a total of 17 questions and some of the questions have multiple correct answers. Let us start with MCQs R Package Development.

Online MCQs about R Package Development

1. Which of the following statements correctly describes how R functions should be defined with the package directory?

 
 
 
 

2. For packages that require C code, what should be installed on your system?

 
 
 
 

3. What is a pull request on GitHub?

 
 
 
 

4. Which of the following are good reasons to build an R Package?

 
 
 
 

5. How is attaching a package namespace different from loading a namespace?

 
 
 
 

6. What is the purpose of the Imports field in the DESCRIPTION file?

 
 
 
 

7. Which of the following functions from the `devtools` package are you likely to use often, rather than just once per package, when building a package?

 
 
 
 

8. Which of the following files and subdirectories will be included in the initial package directory if you create a new package using the ‘create’ function from ‘devtools’?

 
 
 
 
 
 
 
 
 
 
 

9. In which sub-directory of an R package should tests be placed?

 
 
 
 

10. What does the is_a() function do in the context of testthat?

 
 
 
 

11. The GNU General Public License is called a copyleft license because

 
 
 
 

12. Which of the following files and folders are required in an R package?

 
 
 
 
 
 

13. What does the ::: operator do?

 
 
 
 

14. What is Git?

 
 
 
 

15. When a test fails in a call to expect_that(), what happens?

 
 
 
 

16. Which of the following are good reasons for open-sourcing your software?

 
 
 
 

17. What is the purpose of the DESCRIPTION file in a package?

 
 
 
 

MCQs R Package Development with Answers

R FAQS Logo: MCQs R Package Development
  • Which of the following are good reasons to build an R Package?
  • Which of the following files and folders are required in an R package?
  • Which of the following files and subdirectories will be included in the initial package directory if you create a new package using the ‘create’ function from ‘devtools’?
  • Which of the following functions from the devtools package are you likely to use often, rather than just once per package, when building a package?
  • What is the purpose of the DESCRIPTION file in a package?
  • Which of the following statements correctly describes how R functions should be defined with the package directory?
  • How is attaching a package namespace different from loading a namespace?
  • For packages that require C code, what should be installed on your system?
  • What is the purpose of the Imports field in the DESCRIPTION file?
  • Which of the following are good reasons for open-sourcing your software?
  • When a test fails in a call to expect_that(), what happens?
  • What does the is_a() function do in the context of testthat?
  • In which sub-directory of an R package should tests be placed?
  • What is Git?
  • What is a pull request on GitHub?
  • The GNU General Public License is called a copyleft license because
  • What does the ::: operator do?

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Important Online Python Quiz 2

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The post contains a Quiz about Python with Answers. The MCQs in this Python Quiz cover topics related to data frames in Python, some basic concepts, and an introduction to Python. Let us start with the quiz.

Please go to Important Online Python Quiz 2 to view the test

Python Quiz with Answers

  • We have a data frame called df. Which line of code aggregates the data based on a column (col_A) and counts the number of rows?
  • We have a data frame called df. Which method is used to create a line chart of two columns $a$ and $b$?
  • We want to delete a list of columns from our data frame df. Which one of these methods is used to delete a column in a data frame?
  • Which method creates the correlation matrix of the numerical columns in a data frame df?
  • How would you access the column “symboling” from the data frame df?
  • We have a data frame called df, in which the pandas property is used to check the columns’ data types.
  • We have a data frame called df, choose the correct pandas property that shows you the number of rows and columns in the data frame.
  • Suppose you have a data frame named df What does the following method do to the data frame df.head(12)?
  • A data professional wants to merge two pandas’ data frames. They want to join the data so that only the keys that are in both data frames get included in the merge. What technique can they use to do so?
  • How do you determine the median of data using Pandas?
  • How would you get the columns for temperature and rainfall from a data frame using Python?
  • What will be the datatype of the output of df[‘A’] where ‘df’ is a data frame and ‘A’ is one of the columns?
  • What will be the datatype of the output of df[‘A’] where ‘df’ is a data frame and ‘A’ is one of the columns?
  • A data professional is working with a NumPy array that has three rows and two columns. They want to change the data into two rows and three columns. What method can they use to do so?
  • Which data structure is [1,2,3,4].
  • What is indicated by the term null?
  • What is the name of the attribute that we want to predict
  • What is the difference between a list and a tuple in Python?
  • What is the syntax to create a tuple in Python?
  • What happens when you add an int and a float?
Python Quiz with Answers

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Best Online Python Quizzes 2024

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Click the links below to start with important Online Python Quizzes. These Online Python Quizzes cover topics related to Python Basics, Data types, Data Structures, Functions, Libraries, Editors, Conditional Statements, Loops, Performing Data Analysis, etc.

Python MCQ Online Test 5Python MCQs Test 4
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Online Python Quizzes with Answers

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