Reflection Questions

How was the install process? Anything I should know for future students?

It wasn’t too hard to install the software because I was able to turn to Gemini with my questions and it was able to lead me in the correct direction. One thing I feel like future students need to know is that AI is something that can help in this aspect, if you go to Gemini or ChatGPT with specific questions regarding the software you’re using it is often able to guide you through the process, especially with relatively simple coding like with RStudio.

Have you used statistical software before?

I’ve used softwares like JASP and other free to use websites(during my highschool) but I don’t have any actual understanding of how these work.

Installing new packages

#install.packages("psych")
#install.packages("psychTools")

Calling Packages

library(psych)
library(psychTools)

Call in sample data “epi.bdi” 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.   :79.00

Run the histogram and mean functions on the “bdi” variable

hist(epi.bfi$bdi)

mean(epi.bfi$bdi)
## [1] 6.779221

This is the end of the First R Lab – we did it!