R Programming for Biologists

Teaching the tools to get computers to do cool science

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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 site and, separately, for each experiment

read.csv("data/shrub-volume-data.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))
  1. Fix the errors in the code so that it does what it’s supposed to
  2. Add a comment to the top of the code explaining what it does