ggplot2 assignment

ggplot2 assignment

You have now learned about how to set up a script, locate and download data, explore the structure of that data set, summarise it in various ways, and now, plot its variables with ggplot2.

Here is your assignment. It involves working with the data set on cattle weight gain as a function of the diet they are fed (grains) and vitamin supplements again (the growth.csv data).

• Work with your script from the last exercise. This should contain dplyr code that calculates the mean and standard error of cattle weight gain in each combination of diet and supplement.

• Use ggplot2 to produce the interaction plot below. HINT: You will need to use the group = aesthetic.