Penguin group counts
Looking at the penguins dataset, your colleague gets curious about how many observations of the different species there are. With your knowledge of groupby(), can you help them?
The penguins dataset and the DataFrames package have been loaded for you.
本练习是课程的一部分
Data Manipulation in Julia
练习说明
- Create a
penguin_speciesGroupedDataFrame by groupingpenguinsbyspeciescolumn. - Get the number of rows per
penguin_species, naming the resulting column aspenguins_observed, and sorting the results in descending order ofpenguins_observed.
交互式实操练习
通过完成这段示例代码来试试这个练习。
# Create penguin_species
____ = ____(____)
# Count the observations per group and rename the column, then sort
____(____(penguin_species, ____), ____, ____)