First R Lab
Sophie Levin
2026-08-27
Reflection Questions
How was the R install process? I felt like the installation process was relatively easy, you just have to make sure you are following all the directions.
How was the course folder organization process Same answer as above, as long as you follow directions it is easy.
Installing new packages
# this is a note
#install.packages("psych")
#install.packages("psychTools")Calling packages
library(psych)
library(psychTools)Call in sample data “epi.bfi” from the psychTools package
data("epi.bfi")
summary(epi.bfi)## epiE epiS epiImp epilie
## Min. : 1.00 Min. : 0.000 Min. :0.000 Min. :0.000
## 1st Qu.:11.00 1st Qu.: 6.000 1st Qu.:3.000 1st Qu.:1.000
## Median :14.00 Median : 8.000 Median :4.000 Median :2.000
## Mean :13.33 Mean : 7.584 Mean :4.368 Mean :2.377
## 3rd Qu.:16.00 3rd Qu.: 9.500 3rd Qu.:6.000 3rd Qu.:3.000
## Max. :22.00 Max. :13.000 Max. :9.000 Max. :7.000
## epiNeur bfagree bfcon bfext
## Min. : 0.00 Min. : 74.0 Min. : 53.0 Min. : 8.0
## 1st Qu.: 7.00 1st Qu.:112.0 1st Qu.: 99.0 1st Qu.: 87.5
## Median :10.00 Median :126.0 Median :114.0 Median :104.0
## Mean :10.41 Mean :125.0 Mean :113.3 Mean :102.2
## 3rd Qu.:14.00 3rd Qu.:136.5 3rd Qu.:128.5 3rd Qu.:118.0
## Max. :23.00 Max. :167.0 Max. :178.0 Max. :168.0
## bfneur bfopen bdi traitanx
## Min. : 34.00 Min. : 73.0 Min. : 0.000 Min. :22.00
## 1st Qu.: 70.00 1st Qu.:110.0 1st Qu.: 3.000 1st Qu.:32.00
## Median : 90.00 Median :125.0 Median : 6.000 Median :38.00
## Mean : 87.97 Mean :123.4 Mean : 6.779 Mean :39.01
## 3rd Qu.:104.00 3rd Qu.:136.5 3rd Qu.: 9.000 3rd Qu.:44.00
## Max. :152.00 Max. :173.0 Max. :27.000 Max. :71.00
## stateanx
## Min. :21.00
## 1st Qu.:32.00
## Median :38.00
## Mean :39.85
## 3rd Qu.:46.50
## Max. :79.00Run the histogram and mean functions on “bdi” variable
hist(epi.bfi$bdi)
mean(epi.bfi$bdi)## [1] 6.779221