If you want to sort a data frame the standard advice that you’ll find online is to use the order() function (not described in this book) to determine what order the rows should be sorted, and then use...If you want to sort a data frame the standard advice that you’ll find online is to use the order() function (not described in this book) to determine what order the rows should be sorted, and then use square brackets to do the shuffling. To make this a little easier, the lsr package has two additional functions rowCopy and colCopy that do the same job, but all you have to do is specify the number of copies that you want, instead of typing the name in over and over again.
