Question

Which of the following function is used for searching text strings by means of regular expression? (a) grepd (b) grepl (c) gepexpr (d) all of the mentioned The question was posed to me during an interview. I want to ask this question from Regular Expressions and Text Variables topic in section Getting Data of Data Science Select the correct answer from above options Data Science questions and answers, Data Science questions pdf, Data Science question bank, Data Science questions and answers pdf, mcq on Data Science pdf, Data Science questions and solutions, Java mcq Test , Interview Data Science questions, Data Science Questions for Interview, Data Science MCQ (Multiple Choice Questions),Core Data Science Questions, Core Data Science MCQ,core Data Science interview questions for experiencedcore Data Science interview questions for 3 years experience,Data Science programming questions,core Data Science interview questions for freshers,Data Science interview questions and answers for freshers, Data Science programming questions and answers pdf, Data Science interview questions for beginners

Answer 1

Right answer is (b) grepl The best I can explain: grep, grepl, regexpr, gregexpr and regexec search for matches to argument pattern within each element of a character vector.