dplyr

Fix the Code

This is a follow-up to Shrub Volume Aggregation. If you haven’t already downloaded the shrub volume data do so now and store it in your data directory.

The following code is supposed to import the shrub volume data and calculate the average shrub volume for each experiment and, separately, for each site

read.csv("data/shrub-volume-experiment.csv")
shrub_data %>%
  mutate(volume = length * width * height) %>%
  group_by(site) %>%
  summarize(mean_volume = max(volume))
shrub_data %>%
  mutate(volume = length * width * height)
  group_by(experiment) %>%
  summarize(mean_volume = mean(volume))

Fix the errors in the code so that it does what it’s supposed to
Add a comment to the top of the code explaining what it does
In a text file, discuss how you know that your fixed version of the code is right and how you would try to make sure it was right if the data file was thousands of lines long

[click here for output]

Data Carpentry -for- Ecologists

dplyr

Fix the Code