Use the field names in a NEON variables file to create an arrow schema of all strings, or, if no variables file is available, read the header and assign everything as string.
schemaAllStrings(variables)
An arrow schema for the relevant data table with all variables set to string.
A data frame containing a NEON variables file for a single table, or a set of field names.
Claire Lunch clunch@battelleecology.org
License: GNU AFFERO GENERAL PUBLIC LICENSE Version 3, 19 November 2007