Set working directory in Markdown

knitr::opts_knit$set(root.dir = 'C:/Users/bmfer/OneDrive/Desktop/Secondary Data Analysis')

Check working Directory

getwd()
## [1] "C:/Users/bmfer/OneDrive/Desktop/Secondary Data Analysis"

Import SAS transport file

#install.packages("Hmisc")
library(Hmisc)
## Loading required package: lattice
## Loading required package: survival
## Loading required package: Formula
## Loading required package: ggplot2
## 
## Attaching package: 'Hmisc'
## The following objects are masked from 'package:base':
## 
##     format.pval, units
my_data <- sasxport.get("h198.ssp")
## Processing SAS dataset H198   ..
summary(my_data)
##    homeidx              duid           panel        fsout42      
##  Length:12715       Length:12715       21:6327   Min.   :-9.000  
##  Class1:labelled    Class1:labelled    22:6388   1st Qu.: 3.000  
##  Class2:character   Class2:character             Median : 3.000  
##  Mode  :character   Mode  :character             Mean   : 2.804  
##                                                  3rd Qu.: 3.000  
##                                                  Max.   : 3.000  
##     fslast42         fsafrd42         fsskip42          fsskdy42      
##  Min.   :-9.000   Min.   :-9.000   Min.   :-7.0000   Min.   :-8.0000  
##  1st Qu.: 3.000   1st Qu.: 3.000   1st Qu.:-1.0000   1st Qu.:-1.0000  
##  Median : 3.000   Median : 3.000   Median :-1.0000   Median :-1.0000  
##  Mean   : 2.822   Mean   : 2.815   Mean   :-0.4935   Mean   :-0.3817  
##  3rd Qu.: 3.000   3rd Qu.: 3.000   3rd Qu.:-1.0000   3rd Qu.:-1.0000  
##  Max.   : 3.000   Max.   : 3.000   Max.   : 2.0000   Max.   :30.0000  
##     fsless42          fshgry42          fswtls42          fsneat42      
##  Min.   :-8.0000   Min.   :-8.0000   Min.   :-8.0000   Min.   :-9.0000  
##  1st Qu.:-1.0000   1st Qu.:-1.0000   1st Qu.:-1.0000   1st Qu.:-1.0000  
##  Median :-1.0000   Median :-1.0000   Median :-1.0000   Median :-1.0000  
##  Mean   :-0.4989   Mean   :-0.4739   Mean   :-0.4859   Mean   :-0.7737  
##  3rd Qu.:-1.0000   3rd Qu.:-1.0000   3rd Qu.:-1.0000   3rd Qu.:-1.0000  
##  Max.   : 2.0000   Max.   : 2.0000   Max.   : 2.0000   Max.   : 2.0000  
##     fsnedy42           fswt42            varstr         varpsu     
##  Min.   :-8.0000   Min.   :  537.2   Min.   :1001   Min.   :1.000  
##  1st Qu.:-1.0000   1st Qu.: 5472.1   1st Qu.:1087   1st Qu.:1.000  
##  Median :-1.0000   Median : 8965.8   Median :2001   Median :2.000  
##  Mean   :-0.8858   Mean   :10896.5   Mean   :1573   Mean   :1.631  
##  3rd Qu.:-1.0000   3rd Qu.:13722.5   3rd Qu.:2057   3rd Qu.:2.000  
##  Max.   :30.0000   Max.   :89055.4   Max.   :2117   Max.   :3.000