Test Quiz Welcome to the Quiz on Basics of R This quiz will be automatically submitted after 15 minutes. You can see timer in the title bar of the website. All the Best !!! Team Stat Modeller Your Name Your Email Your Number What is the command in R to check data type of the object? datatype() showdata() dtype() class() None You can perform graphical analysis in R False True None To add interactivity to the charts prepared using ggplot2 package, we can use ________ package. Ggplotly DataExplorer Plotly Readxl None Which command is used to create a data frame? create data frame() data.frame() data_frame() dataframe() None Which chart is suitable when there are two quantitative variables? Histogram Box Plot Clustered Bar Chart Scatter Plot None In matrix, what is the the role of "byrow = T" argument? It will not arrange data row wise It will keep only rows It will arrange data row wise It will eliminate rows None Which command is used to import data from the CSV file in R? read.csv() import_csv() import.csv() read_csv() None List can hold only similar data types. False True None Researcher is collecting data of Gender (Male, Female). Which type of data it is? Ratio Interval Ordinal Nominal None To remove any object from the Global Environment, we can use __________ command. delete() del() rm() eliminate() None To clear console, we can use ________ command (in Windows system) Ctrl + C Ctrl + D Ctrl + L Ctrl + M None To get list of all the variables in the Global Environment, you have to use __________ command. list_variables() ls() list() global() None Which argument is used to give column and row name in the matrix? dimnames() row_name() column() column_name() None Which of the following are the Homogeneous structure in R? [Select all applicable] Vector Array Matrix List You want to generate numbers in R which are alternate number from 1 to 100. Which command you will use? rep sequence seq repeat None Which is the command to create a histogram using a base package? histogram(x) hist(x) graph(x) plot(x) None What is the command to see the current working directory? currentwd() setwd() getcwd() getwd() None Which package is required to import data from Excel in R? read_excel readxl readr excelpackage None Which of the following will not generate the Logical Vector? logical <- c(T, F, F, T, F) log1 <- c("T", "F", "F", "T", "F") logi1 <- c(T, F, F, T, F) log1 <- c(TRUE, FALSE, FALSE, TRUE, FALSE) None Data on intelligence level is collected as High, Medium and Low. Which type of data it is? Interval Ratio Ordinal Nominal None To get descriptive statistics in one command, we can use _____________. descriptive() statistics() describe() summary() None Which of the following are the Heterogeneous structure in R? [Select all applicable] List Vector Data Frame Array Which of the following gives warning while creating matrix? M1 <- matrix(1:5, nrow = 3, ncol = 2) M1 <- matrix(1:9, nrow = 3, ncol = 3) M1 <- matrix(1:6, nrow = 3, ncol = 2) M1 <- matrix(1:10, nrow = 5, ncol = 2) None How to prepare scatter plot using a base package? xy() plot() scatter() point() None Mr. Gupta is collecting data of States of the respondents, what type of data it will be in R? character complex numbers alphabet state None Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional)