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• Point out the correct statement.(a) gsub is used for fixing character vectors(b) sub is used for finding values like grep(c) grep is used for fixing character vectors(d) none of the mentionedThis question was addressed to me in quiz.Query is from Regular Expressions and Text Variables in section Getting Data of Data Science
• httr package does not work well with facebook and twitter API.(a) True(b) FalseThe question was posed to me during an online exam.Question is taken from Reading from Web and APIs in portion Getting Data of Data Science
• Which of the following function is used to read data off the webpages?(a) read.web(b) read.Lines(c) read.Line(d) all of the mentionedI had been asked this question in quiz.Query is from Reading from Web and APIs in portion Getting Data of Data Science
• Point out the wrong statement.(a) Variables with character values should be made less descriptive(b) Variables with character values should usually be made into factor variable(c) Common variables are used to apply transforms(d) All of the mentionedThe question was posed to me in an international level competition.I'm obligated to ask this question of Regular Expressions and Text Variables in division Getting Data of Data Science
• Which of the following function gives information about top level data?(a) head(b) tail(c) summary(d) none of the mentionedThe question was posed to me in an international level competition.My question comes from Summarizing and Merging Data in chapter Getting Data of Data Science
• Point out the correct statement.(a) XLConnect package has more options for manipulating access files(b) XLConnect vignette package can also be used for manipulating excel files(c) write.xlsx write out an excel file with different argument(d) None of the mentionedI had been asked this question by my school principal while I was bunking the class.The above asked question is from Reading from Web and APIs topic in division Getting Data of Data Science
• Which of the following function is used for loading flat files?(a) read.data(b) read.sheet(c) read.table(d) none of the mentionedI got this question in homework.This question is from Reading from Web and APIs topic in division Getting Data of Data Science
• tidyr is a reframing of _______ designed to accompany the tidy data framework.(a) reshape5(b) dplyr(c) reshape2(d) all of the mentionedI have been asked this question by my school principal while I was bunking the class.This intriguing question originated from Tidy Data in section Getting Data of Data Science
• Point out the correct statement.(a) Primary data is original source of data(b) Secondary data is original source of data(c) Questions are obtained after data processing steps(d) None of the MentionedThis question was addressed to me by my college professor while I was bunking the class.I need to ask this question from Raw and Processed Data in section Getting Data of Data Science
• Which of the following function is used for fixing character vectors?(a) tolower(b) toUPPER(c) toLOWER(d) all of the mentionedThe question was posed to me during an interview.I would like to ask this question from Regular Expressions and Text Variables in section Getting Data of Data Science