3. In file 'R-Factor-Basics.docx', page 4, use the factor() command to modify the columndat$Group so that the control group is plotted last.e # Create the data frame.emp.data <- data.frame (eemp_id = c (1:5),emp name = c("Rick","Dan","Michelle","Ryan","Gary"),-salary = c(623.3,515.2,611.0,729.0,843.25),start date =as. Date (c ("2012-01-01", "2013-09-23", "2014-11-15","2014-05-11",e"2015-03-27")),stringsAsFactors = FALSE# Add the "dept" coulmn.eemp.data$dept <- c("IT","Operations","IT","HR","Finance")ev <- emp.dataeprint (v) eWhen we execute the above code, it produces the following resultemp_idemp_nameRicksalarystart datedepte1.1623.302012-01-01IT-2Dan515.202013-09-23Operationse33Michelle611.002014-11-15IT-44Ryan729.002014-05-11HR5Gary843.252015-03-27Finance

we write simple code for factor of department.…

Answered: In file 'R-Factor-Basics.docx', page 4,…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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In file 'R-Factor-Basics.docx', page 4, use the factor() command to modify the column dat$Group so that the control group is plotted last.