Adding tidyselect i.e. select using a mix of string colnames and predefined predicates

[grahitr]

27

[grahitr]

Methods affected by this change are

• select
• relocate
• mutate
• summarise
• pivot_wider (names_from, values_from, id_cols)
• pivot_longer(cols)
• drop_na
• unite
• nest

Ref: (https://tidyselect.r-lib.org/reference/faq-selection-context.html)