# Lines to be fit together, if possible 
common/combo/ elines, eht[3,3], num, nfrac, ncombo
double elines[3,3]	# line center wavelengths
double eht[3,3]		# line heights
int num[3]		# Number of lines in tuple 
int nfrac[3]		# fraction of spectrum beyond each edge 
int ncombo		# Number of combination lines