Resolve one or two candidate column names to a single numeric vector

Given one or two candidate column names and a data frame, returns a single numeric vector. If both columns are present, they are coalesced with the first (990 PC) taking priority and the second (990-EZ) filling in where the first is NA.

Usage

resolve_col(dat, cols)

Arguments

dat

A data.frame.

cols

Character vector of one or two column names.

Value

A numeric vector of length nrow(dat).