%>%	pipe
check_interval	check_interval
count_intervals	count_intervals
create_byperson	create_byperson
create_bysg	create_bysg
define_crit1_cutoff	define_crit1_cutoff
describe_sg	describe_sg
extract_values	extract_values
identify_sg	identify_sg
identify_sl	identify_sl
plot_sg	plot_sg
plot_sg_intervals	plot_sg_intervals
plot_sg_trajectories	plot_sg_trajectories
rename_sg_vars	rename_sg_vars
select_cases	select_cases
sgdata	sgdata
sgdata_bad	sgdata_bad
write_byperson	write_byperson
write_bysg	write_bysg
