Question

Which of the following function is used for casting data frames? (a) dcast (b) ucast (c) rcast (d) all of the mentioned The question was asked in final exam. My doubt is from Summarizing and Merging Data 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

Correct option is (a) dcast The explanation: Use acast or dcast depending on whether you want vector/matrix/array output or data frame output.