What is the function to set row names for a data frame?

R Programming MCQ Quiz (Multiple Choice Questions And Answers)

• The most convenient way to use R is at a graphics workstation running a ________ system
• Point out the wrong statement?
• Which of the following is default prompt for UNIX environment?
• Which of the following will start the R program?
• Point out the wrong statement?
• Which of the following statement is alternative to _________?solve
• Elementary commands in R consist of either _______ or assignments
• If a command is not complete at the end of a line, R will give a different prompt, by default it is ____________
• Command lines entered at the console are limited to about ________ bytes
• _____ text editor provides more general support mechanisms via ESS for working interactively with R
• What is output of getOption(“defaultPackages”) in R studio?
• R language is a dialect of which of the following languages?
• How many atomic vector types does R have?
• What is the function to set row names for a data frame?
• A single element of a character vector is referred as ________
• R files has an extension ______
• If the code is stored in the external file, which of the following function is used to call them to a working directory?
• Advanced programmers can write ______ code to manipulate R objects
• In ________ Insightful purchased the S language from Lucent for $2 million
• Functionality of R is divided into a number of __________

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