Copy to Database (dplyr Databases)
Dr. Undómiel has decided to focus on the change in size of a few target rodent species over the course of the experiment(1977-2002). She has chosen Dipodymys spectabilis, Onychomys torridus, Perymiscus erimicus, Chaetodipus penicillatus.
Write a script that uses dplyr
to:
- Connect to the
portal_mammals.sqlite
. - Generate a data frame with
year
,species_id
, and the average weight per year (avg_weight
) for each target species. You may find the%in% c()
construction useful for yourfilter()
. - Use
copy_to()
to include your new data frame inportal_mammals.sqlite
. Call it something informative so that Dr. Undómiel can find it easily. Make sure it remains after the connection is terminated usingtemporary = FALSE
.