Assessment Part 1_ Dates, Times, and Text Mining _ 4.1_ Dates, Times, and Text Mining _ PH125.6x Cou

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Course Section… 4.1: Da… Assess… Assessment Part 1: Dates, Times, and Text Mining This assessment reviews several concepts about dates, times, and text mining. In part 1 on this page, you will practice extracting and manipulating dates in real datasets. In part 2 on the next page, you will walk through a sentiment analysis of a novel using steps covered in the previous section. Use the following libraries and options for coding questions: library(dslabs) library(lubridate) options(digits = 3) # 3 significant digits IMPORTANT : Some of these exercises use dslabs datasets that were added in a July 2019 update. Make sure your package is up to date with the command update.packages("dslabs") . You can also update all packages on your system by running update.packages() with no arguments, and you should consider doing this routinely. Question 1 1/1 point (graded) Which of the following is the standard ISO 8601 format for dates? MM-DD-YY YYYY-MM-DD YYYYMMDD YY-MM-DD
Correct (1/1 point) Correct (1/1 point) Answer Correct:

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