L8a : Simple linear (i.e., $y = b_{0} + b_{1} x$ ) (search also class L8h)

L8a1:	Ordinary least squares	(4 routines)
L8a2:	$L_{p}$ for $p$ different from 2 (e.g., least absolute value, minimax)	(2 routines)
L8a3:	Robust	(0 routines)
L8a4:	Errors in variables	(0 routines)

L8a : Simple linear (i.e., y=b0+b1 x) (search also class L8h)