R Language Quiz

The post is about MCQs R Language. The quiz about MCQS R Language covers some basics of R language, its functionality, concepts of packages, and history of R Language.

The R language is a free and open-source language developed by Ross Ihaka and Robert Gentleman in 1991 at the University of Auckland, New Zealand. The R Language is used for statistical computing and graphics to clean, analyze, and graph your data.

MCQs R Language History and Basics Online Quiz

• In which year the R-Core Team was formed?
• The public version of R released in 2000 was
• R Runs on the operating system
• The primary source code copyright for R is held by the
• R is published under the General Public License version.
• The “base” R system can be downloaded from
• The following packages are not contained in the “base” R system.
• One limitation of R is that its functionality is based on __________.
• The wrong statement from the following is:
• R functionality is divided into a number of
• The primary R system is available from the ________.
• Which package contains the most fundamental functions to run R?
• Which of the following is the wrong statement:
• Which of the following is a “base” package for the R language?
• Which of the following is a recommended package in R
• What is the output of getOption(“defaultPackages”) in R Studio?
• Advanced users of R can write ___________ code to manipulate R objects directly
• Which of the following is used for Statistical analysis in the R language?
• Which of the following are examples of variable names that can be used in R?
• Which of the following are best practices for creating data frames?

The strengths of R programming language lie in its statistical capabilities, data visualization tools (such as ggplot2), and a vast ecosystem of packages contributed by the community. R Language remains a popular choice for statisticians and data scientists working on a wide range of projects.

Basic Statistics and Data Analysis

This quiz “R Language Test” will help you to check your ability to execute some basic operations on objects in the R language, and it will also help you to understand some basic concepts. This quiz about R Language Test will help you to improve your computational understanding. Let us start with R Language Test Quiz.

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The R language Test covers some looping functions such asapply(), lapply(), mapply(), sapply(), and tapply(). Results from the execution of r codes are also asked.

Online R Language Test

• Which of the following is a base package for the R language?
• R comes with a to help you optimize your code and improve its performance.
• The debug( ) flags a function for mode in R mode.
• A matrix is _________ a dimensional rectangular data set.
• The function takes a vector or other objects and splits it into groups determined by a factor or list of factors.
• The lapply( ) function takes arguments
• ________is used to apply a function over subsets of a vector
• ________ applies a function over the margins of an array
• _________ function is the same as lapply( ) __________ loop over a list and evaluate a function on each element
• Which of the following methods makes a vector of repeated values?
• Which of the following is used for Statistical analysis in R language?
• R functionality is divided into a number of
• Which of the following is an example of a vectorized operation for subtraction operation > x<- 1:4 > y<- 6:9 What would be the output of the following code? > x <- 1:4 > y <- 6:9 > z <- x + y > z
• What would be the output of the following code? > x <- 1:4 > x > 2
• What would be the value of the following expression? > log(-1)
• “An analyst is checking the value of the variable x using a logical operator, so they run the following code:x > 35 & x < 65
  Which values of x would return TRUE when the analyst runs the code? Select all that apply.”
• When working in R, for which part of the data analysis process do analysts use the tidyr package?
• Why would a data analyst want to use the CRAN network when working with RStudio?

R Programming Language

Computer MCQs Test Online

This quiz “MCQs R Programming Language” will help you to check your ability to execute some basic operations on objects in the R language, and it will also help you to understand some basic concepts. This MCQs R Programming Language Quiz will also improve computational understanding. Let us start with the test “MCQs R Programming Language” with Answers.

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MCQs R Programming Language 1

• The R language is a dialect of which of the following programming languages?
• The definition of free software consists of four freedoms (freedoms 0 through 3). Which of the following is NOT one of the freedoms that are part of the definition?
• In R language the following are all atomic data types EXCEPT
• If I execute the expression x <- 4 in R language, what is the class of the object “x” as determined by the “class()” function?
• What is the class of the object defined by the expression x <- c(4, “a”, TRUE)?
• If I have two vectors x <- c(1,3, 5) and y <- c(3, 2, 10), what is produced by the expression rbind(x, y)?
• A key property of vectors in R language is that
• Suppose I have a list defined as x <- list(2, “a”, “b”, TRUE). What does x[[2]] give me?
• Suppose I have a vector x <- c(3, 5, 1, 10, 12, 6) and I want to set all elements of this vector that are less than 6 to be equal to zero. What R code achieves this?
• ____________ is a function in R to get the number of observations in a data frame
• What function is used to test the missing observation in a data frame
• Which of the following statements about RStudio’s integrated development environment are correct?
• Suppose I have a vector x <- 1:4 and y <- 2:3. What is produced by the expression x + y?
• Which of the following statements about RStudio’s integrated development environment are correct?
• A data analyst writes the code summary(penguins) to display a summary of the penguins dataset. Where in RStudio can the analyst execute the code?
• What should you use to assign a value to a variable in R?
• Which of the following examples is the proper syntax for a function in R?
• What is the benefit of using the R programming language for data analysis?
• Which of the following examples can you use in R for date/time data?
• A data analyst inputs the following calculation in their R programming: $$basket_1 * 20 + basket_2 * 15 $$ Which arithmetic operators are the analyst using?

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