## Warning: package 'ISLR' was built under R version 3.3.1

## 'data.frame':    3000 obs. of  12 variables:
##  $ year      : int  2006 2004 2003 2003 2005 2008 2009 2008 2006 2004 ...
##  $ age       : int  18 24 45 43 50 54 44 30 41 52 ...
##  $ sex       : Factor w/ 2 levels "1. Male","2. Female": 1 1 1 1 1 1 1 1 1 1 ...
##  $ maritl    : Factor w/ 5 levels "1. Never Married",..: 1 1 2 2 4 2 2 1 1 2 ...
##  $ race      : Factor w/ 4 levels "1. White","2. Black",..: 1 1 1 3 1 1 4 3 2 1 ...
##  $ education : Factor w/ 5 levels "1. < HS Grad",..: 1 4 3 4 2 4 3 3 3 2 ...
##  $ region    : Factor w/ 9 levels "1. New England",..: 2 2 2 2 2 2 2 2 2 2 ...
##  $ jobclass  : Factor w/ 2 levels "1. Industrial",..: 1 2 1 2 2 2 1 2 2 2 ...
##  $ health    : Factor w/ 2 levels "1. <=Good","2. >=Very Good": 1 2 1 2 1 2 2 1 2 2 ...
##  $ health_ins: Factor w/ 2 levels "1. Yes","2. No": 2 2 1 1 1 1 1 1 1 1 ...
##  $ logwage   : num  4.32 4.26 4.88 5.04 4.32 ...
##  $ wage      : num  75 70.5 131 154.7 75 ...

##       year           age               sex                    maritl    
##  Min.   :2003   Min.   :18.00   1. Male  :3000   1. Never Married: 648  
##  1st Qu.:2004   1st Qu.:33.75   2. Female:   0   2. Married      :2074  
##  Median :2006   Median :42.00                    3. Widowed      :  19  
##  Mean   :2006   Mean   :42.41                    4. Divorced     : 204  
##  3rd Qu.:2008   3rd Qu.:51.00                    5. Separated    :  55  
##  Max.   :2009   Max.   :80.00                                           
##                                                                         
##        race                   education                     region    
##  1. White:2480   1. < HS Grad      :268   2. Middle Atlantic   :3000  
##  2. Black: 293   2. HS Grad        :971   1. New England       :   0  
##  3. Asian: 190   3. Some College   :650   3. East North Central:   0  
##  4. Other:  37   4. College Grad   :685   4. West North Central:   0  
##                  5. Advanced Degree:426   5. South Atlantic    :   0  
##                                           6. East South Central:   0  
##                                           (Other)              :   0  
##            jobclass               health      health_ins      logwage     
##  1. Industrial :1544   1. <=Good     : 858   1. Yes:2083   Min.   :3.000  
##  2. Information:1456   2. >=Very Good:2142   2. No : 917   1st Qu.:4.447  
##                                                            Median :4.653  
##                                                            Mean   :4.654  
##                                                            3rd Qu.:4.857  
##                                                            Max.   :5.763  
##                                                                           
##       wage       
##  Min.   : 20.09  
##  1st Qu.: 85.38  
##  Median :104.92  
##  Mean   :111.70  
##  3rd Qu.:128.68  
##  Max.   :318.34  
##