hw02 ready for grading

[danaj191]

@vincenzocoia @gvdr @ksedivyhaley @joeybernhardt @mynamedaike @pgonzaleze @derekcho

thanks!

[yidie]

Hi James, here are some comments:

• Please create a folder "hw02" to put all related files. Also create a README file for this folder. The will make your repo look more clean and organized.

• It would be better if you can organize your code by using bullet points/sections/headers. Because it is a little bit hard to match what you did with the questions that were asked.

• Other than the code, maybe write down some observations?

• Good job hitting most of the elements.

• Good reflections and thanks for reminding us what not to do.

Thanks, Yidie

[ksedivyhaley]

Smell test of data: Yes Explores at least one categorical/quantitative variable: Yes Uses various plot types: Histogram (base), scatterplot (base and ggplot) Uses filter(), select(), and %>%: Partial: no select() Bonus (evaluate code, tables, more dplyr): No. Reflection on process: Yes

Comments:

• The document could use more text to guide the reader.

• Avoid saving a subset of a dataset. Eg, use hist(gapminder$lifeExp) instead of

  y <- gapminder$lifeExp
  hist(y)

• If you do save a subset of a dataset, make sure to give it a more descriptive name than y. This affects the graph titles, too!

• arrange() doesn't affect graphs.

• Try making a different type of graph in ggplot.

Your mark will be distributed later. If you would like more feedback, please feel free to message me on slack.

[rainerlempert]

Hi James,

Nice job on the assignment. You did a good job answering the questions and showed knowledge of dplyr functions and syntax, including piping, as well as ggplot2 functions. Your reflections were useful and earnest - I've also had issues reorganizing my repo, it can get confusing.

You could've been more creative with your graphical exploration - ggplot2 has many different ways of displaying data! Your markdown document also could've had some comments/links to tutorials. Overall though, nice work!

Best, Rainer