Ideas surrounding tidy evaluation quote() and eval() Why quote at-all Resolved messy data with tidy evaluation List behavior Using pmap to perform list operations inside a dataframe Apply a function to certain columns only, by rows Do any arbitrary operation Using dplyr functions inside your own functions Effiecient ways to operate on list Binds each element as row but third element is list Produces rowbinding for dataframe but doesn’t work with list elements Tibble and map data to list column in isolation Modeling, exploration, summary extraction and visualization examples using dplyr verbs.