sfn_vars_to_filter {sapfluxnetr}

List all variables that can be used to filter sites

Description

sfn_vars_to_filter() returns a list with the variables for each kind of metadata that can be used to select and filter sites

Usage

sfn_vars_to_filter()

Value

A list with five elements, site_md, stand_md, species_md, plant_md and env_md

Examples

# all variables
sfn_vars_to_filter()

# by some metadata
sfn_vars_to_filter()$site_md