Changes to Rmd notebooks.

student-notebooks/Notebook1-Intro-To-The-Data-nabba.Rmd

@@ -478,13 +478,19 @@ plot6
 ```
 
 ### **CHALLENGE 2:** Geometry Juggling with GGplot2
+##^lol
 
 Didn't mean for that to rhyme...
 
 For this challenge exercise, start with the data in `my_ct_genes.df` and come up with an alternative visualization geometry for rendering the expression distributions of your set of celltype marker genes. *Hint*: See this  [cheatsheet](https://www.maths.usyd.edu.au/u/UG/SM/STAT3022/r/current/Misc/data-visualization-2.1.pdf) for all of the cool options available for different visualization tasks in `ggplot2`. Specifically, we want a graph type falling under `discrete x, continuous y`.
 
 ```{r}
-# Insert your code here
+genes_dot_plot<-ggplot(my_ct_genes.df, aes(x=Gene, y=ExpressionLevel)) +
+  facet_wrap(~ Mt) +
+  geom_dotplot(binwidth=0.0000002, binaxis="y", stackdir="center")
+
+genes_dot_plot
+                          
 ```