First R Lab
Grace Tibshrany
2025-05-20
Reflection Questions
How was the install proces? Anything I should know for future students?
The install process was very smooth, for future students you should do the same thing, as instructions were easy to follow!
Have you used statistical software before?
Yes I have, I worked in stata for a class Junior year.
Installing new packages
#install.packages("psych")
#install.packages("psychTools")Calling packages
library(psych)
library(psychTools)Call in sample data “epi.bdi” from 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