# >Merging columns
For these exercises, we’ll use the dog breed traits data set along with the data on breed popularity rankings.
- Load tidyverse, download and import
dog_breed_traits_clean.csvtotraits, and importdog_breed_ranks.csvtoranks. Make sure to download both files from the website, as they have changed or are new.
- Which breeds differ between
traitsandranks?
# >- Merge
traitsandranks(in that order) to produce a data frame that includes breeds shared by both data sets. How many rows are there?
# >- Merge
traitsandranks(in that order) to produce a data frame that includes all breeds included in either data set. How many rows are there?
# >- Merge
traitsandranks(in that order) to produce a data frame that includes only breeds included intraits. How many rows are there?
# >- Merge
traitsandranks(in that order) to produce a data frame that includes only breeds included inranks. How many rows are there?
# >- Make
table4aandtable4btidy then join them to replicatetable1.
# >