| tutorial-id | none | introduction | 
  
   | information-name | question | Ivy Spratt | 
  
   | information-email | question | ivyspratt@gmail.com | 
  
   | what-you-will-learn-2 | exercise | library() | 
  
   | what-you-will-learn-3 | exercise | ?sqrt | 
  
   | what-you-will-learn-4 | exercise | ?diamonds | 
  
   | looking-at-data-4-b | question | A dataset containing the prices and other attributes of almost 54,000 diamonds. The variables are as follows: | 
  
   | what-you-will-learn-5 | exercise | x<-sqrt(144) | 
  
   | what-you-will-learn-6 | exercise | diamonds | 
  
   | what-you-will-learn-7 | exercise | print(diamonds) | 
  
   | what-you-will-learn-8 | exercise | print(diamonds,n=3) | 
  
   | what-you-will-learn-9 | exercise | glimpse(diamonds) | 
  
   | what-you-will-learn-10 | exercise | summary(diamonds) | 
  
   | what-you-will-learn-11 | exercise | sqrt(144) #i love nora | 
  
   | how-this-book-is-organized-1 | exercise | glimpse(mpg) | 
  
   | how-this-book-is-organized-2 | exercise | ggplot(data=mpg) | 
  
   | how-this-book-is-organized-3 | exercise | ggplot(data=mpg)
mapping=aes() | 
  
   | how-this-book-is-organized-4 | exercise | ggplot(data=mpg)
mapping=aes(x=displ,y=hwy) | 
  
   | how-this-book-is-organized-5 | exercise | ggplot(data=mpg, mapping=aes(x=displ,y=hwy))+geom_point() | 
  
   | how-this-book-is-organized-6 | exercise | ggplot(data=mpg, mapping=aes(x=displ,y=hwy))+geom_point(alpha=0.5) | 
  
   | how-this-book-is-organized-7 | exercise | ggplot(data=mpg, mapping=aes(x=displ,y=hwy))+geom_point(alpha=0.5,color="steelblue") | 
  
   | how-this-book-is-organized-8 | exercise | ggplot(data=mpg, mapping=aes(x=displ,y=hwy))+geom_point(alpha=0.5,color="steelblue")+labs(title="Measurements for Engine Displacement and Highway Fuel Efficiency of Select Car Models", subtitle="Cars with greater enginer displacement are less fuel efficient",x="Engine Displacement (L)", y="Highway Efficiency (mpg)", caption="EPA (2008)") | 
  
   | running-r-code-1 | exercise | gss_cat | 
  
   | running-r-code-2 | question | A sample of categorical variables from the General Social survey | 
  
   | running-r-code-3 | exercise | gss_cat|>print() | 
  
   | running-r-code-4 | exercise | gss_cat|>filter(age > 88) | 
  
   | running-r-code-5 | exercise | gss_cat|>filter(age > 88)|>select(age, marital, race, relig, tvhours) | 
  
   | running-r-code-6 | exercise | gss_cat|>filter(age > 88)|>select(age, marital, race, relig, tvhours)|>arrange(desc(tvhours)) | 
  
   | download-answers | question | 25 |