title: How to change height of a ggplot in R?
body: <p><a href="https://i.stack.imgur.com/TrDSF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TrDSF.png" alt="Plot for types of exericse vs mental health"></a>Hi, 
  Attached is the graph I plotted for the type of sports vs. average number of days being depressed for 30 days (with variables ranging from 0 to 30). I am trying to get the y axis more spread out but to no avail. I have tried adding the "height" in my code but nothing changes. I wonder why is that?</p>
  
  <p>As you can see on the y axis, the dots are all squished together. I want to get them more spread out on the same scale (0 to 30).</p>
  
  <p>Thanks! </p>
  
  <p><code>ggplot(data=question2data, aes(x=exract11, y=menthlth), height = 500 , width = 7)+ geom_point(position = position_dodge(1))+ theme(axis.text.x = element_text(angle = 90, vjust = 0.5, hjust=1))</code></p>